ADS131A04 Evaluation Module User's Guide (Rev. A) Supported Functionality..... 3 2 Quick Start..... ..... 4 2.1 Default Jumper and Switch Configuration ... ADS131A04 Evaluation Module

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1SBAU259A–March 2016–Revised October 2016Submit Documentation Feedback

Copyright © 2016, Texas Instruments Incorporated

ADS131A04 Evaluation Module User's Guide

Microsoft, Windows are registered trademarks of Microsoft Corporation.

User's GuideSBAU259A–March 2016–Revised October 2016


Figure 1. ADS131A04 Evaluation Module

The ADS131A04EVM is an evaluation module kit that provides hardware and software support forevaluation of the ADS131A04 delta-sigma analog-to-digital converter (ADC). The kit utilizes theTM4C1294NCPDT processor to communicate with the ADC via SPI and provide communication with a PCover USB interface. The kit also includes a software application that runs on a PC allowing for registermanipulation and data collection from the ADC.

Table 1. Related Documentation

Device Literature NumberADS131A04 SBAS590

WARNING

This EVM is not intended for high voltage connections.Do not connect inputs of this EVM to voltages higher than 5 VAC tominimize shock hazard.

http://www.go-dsp.com/forms/techdoc/doc_feedback.htm?litnum=SBAU259A

http://www.ti.com/product/ads131A04

http://www.ti.com/lit/pdf/SBAS590

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Contents1 EVM Overview ............................................................................................................... 3

1.1 Software Requirements ............................................................................................ 31.2 Hardware Requirements ........................................................................................... 31.3 Software Reference ................................................................................................ 31.4 Supported Functionality ............................................................................................ 3

2 Quick Start .................................................................................................................... 42.1 Default Jumper and Switch Configuration ....................................................................... 42.2 Power Connection .................................................................................................. 52.3 Startup................................................................................................................ 5

3 Hardware Reference ........................................................................................................ 53.1 Jumper and Switch Configuration Reference ................................................................... 53.2 Header and Connector Reference................................................................................ 7

4 Software Details ............................................................................................................ 104.1 Installing the Software ............................................................................................ 104.2 Connecting to the EVM Hardware .............................................................................. 124.3 Using the Software With the ADS131A04EVM................................................................ 12

5 EVM Hardware Details .................................................................................................... 145.1 Analog Inputs ...................................................................................................... 145.2 Digital Inputs ....................................................................................................... 145.3 Clock ................................................................................................................ 145.4 Mode Pins .......................................................................................................... 145.5 ADC Reference .................................................................................................... 155.6 Reset................................................................................................................ 15

6 Power Supply Connections – EVM and ADC .......................................................................... 166.1 Powering the EVM ................................................................................................ 166.2 Powering the ADS131A04 ....................................................................................... 16

7 ADS131A04 Bill of Materials, PCB Layouts, and Schematics........................................................ 177.1 Bill of Materials .................................................................................................... 177.2 PCB Layouts ....................................................................................................... 227.3 Schematic .......................................................................................................... 23

List of Figures

1 ADS131A04 Evaluation Module ........................................................................................... 12 ADS131A04 EVM............................................................................................................ 43 Delta-Sigma Evaluation Engine Installation Instructions .............................................................. 104 ADS131A04 Device Package Installation Instructions ................................................................ 115 ADS131A04 Main Tab..................................................................................................... 126 Top Soldermask ............................................................................................................ 227 Bottom Soldermask ....................................................................................................... 228 ADS131A04EVM Schematic.............................................................................................. 239 ADS131A04EVM Power Schematic ..................................................................................... 2410 ADS131A04EVM Digital Header Schematic............................................................................ 2511 ADS131A04EVM Power USB Schematic............................................................................... 2612 ADS131A04EVM Power External Schematic .......................................................................... 2713 ADS131A04EVM ADC Schematic ....................................................................................... 2814 ADS131A04EVM ADC Power Schematic............................................................................... 29

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1 EVM OverviewThe ADS131A04EVM is an evaluation module kit that provides hardware and software support forevaluation of the ADS131A04 delta-sigma analog-to-digital converter (ADC). The kit utilizes theTM4C1294NCPDT processor to communicate with the ADC via SPI and provide communication with a PCover USB interface. The kit also includes a software application that runs on a PC allowing for registermanipulation and data collection from the ADC.

1.1 Software RequirementsPC with Microsoft® Windows® 7 or higher operating system.

1.2 Hardware RequirementsPC with available USB connection.

1.2.1 Power Supply• USB powered• (Optional) Lab supply for AVDD and IOVDD

1.3 Software ReferenceRefer to the PA Delta-Sigma Evaluation Software User's Guide (SBAU260) for the core softwaredocumentation or use the Menu option on the software tab.

1.4 Supported Functionality

1.4.1 Supported Hardware Functionality• Bipolar (±2.5 V) and Unipolar (3.3 V and GND) AVDD and AVSS supply operation• Header for external IOVDD• Fully-differential or single-ended buffers on two channels• Digital header for external processor or controller configuration• Configurable to all interface mode options• On-board or external ADC clock operation• On-board or external ADC voltage reference

1.4.2 Supported Software Functionality• Bipolar (±2.5 V) and unipolar (3.3 V and GND) AVDD and AVSS supply operation• 24-bit asynchronous slave mode operation• CRC error detection ON/OFF

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2 Quick StartThis section provides a guide to quickly begin using the EVM.

2.1 Default Jumper and Switch ConfigurationThe EVM should come configured with the settings listed in Table 2 and illustrated in Figure 2.

Table 2. Default Settings

Jumper Position FunctionJP1 Not Installed Use on-board processorJP2 Not Installed USB derived supplies ONJP3 - DVDD 1-3 DVDD from USB supplyJP3 - AVDD 2-4 AVDD from USB supplyJP5 1-2 Sets M0 pin (valid with S4 set to Manual)JP6 2-3 Sets M1 pin (valid with S4 set to Manual)JP7 2-3 Sets M2 pin (valid with S4 set to Manual)JP8 Installed Charge pump connected to AVSSJP9 Installed Use on-board external voltage referenceJP10 Not Installed Use on-board IOVDD supplyJP11 1-2 Select single-supply operation (3.3 V/GND)SwitchS4 Up Set Mx pin for operation with softwareS5 Up Channel 1 connected to J1 headerS7 Down Device interface connected for SLAVE mode operationS8 Up Channel 4 connected to J7 header

Figure 2. ADS131A04 EVM

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2.2 Power ConnectionThe EVM is powered via the USB interface with the PC. Connect the EVM to a USB connector on yourPC to power the board.

2.3 StartupUse the following steps at startup:1. Install the core application software onto your PC.2. Install the correct device package onto your PC.3. Ensure all jumpers and switches are configured in the default configuration per Table 2 and Figure 2.4. Connect the EVM to your PC using a USB cable.5. Install drivers (if necessary).6. Start the software on your PC.

NOTE: The device has powered correctly if D1 and D2 are both lit green.

3 Hardware Reference

3.1 Jumper and Switch Configuration ReferenceTable 3 provides all jumper and switch configuration settings for the EVM.

Table 3. Jumper and Switch Options

Jumper Position DescriptionJP1 Operation of EVM with external digital stimulus

Installed (ON) Hold processor in reset and disables level shifter to allow external digital signalsUninstalled (OFF) Normal operation with on-board processor

JP2 Power down USB power suppliesInstalled (ON) USB-derived power supplies powered downUninstalled (OFF) USB-derived power supplies ON

JP3 AVDD and DVDD supply connections:● Pins 1, 3, and 5 control the DVDD connection● Pins 2, 4, and 6 control AVDD connection1-3 shorted (DVDD) Connect DVDD to USB power3-5 shorted (DVDD) Connect DVDD to external power2-4 shorted (AVDD) Connect AVDD to USB power4-6 shorted (AVDD) Connect AVDD to external power

JP5 M0 control1-2 M0 pin connected to IOVDD2-3 M0 pin connected to DGNDOpen M0 pin floating



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Table 3. Jumper and Switch Options (continued)Jumper Position DescriptionJP8 Negative charge-pump connection to AVSS

Installed (ON) Charge pump is OFF (software)Uninstalled (OFF) Charge pump up is ON (software)

J8 N/A External clock inputJP9 ADC reference connection

Installed (ON) Use EVM reference and bufferUninstalled (OFF) Use external reference

JP10 IOVDD power selectionInstalled (ON) J11 supply voltageUninstalled (OFF) On-board generated IOVDD

JP11 ADC supply selector (AVDD and AVSS)1-2 Use 3.3-V/GND supplies2-3 Use ±2.5-V supplies

SwitchS3 Processor RESET button (press to reset processor)S4 ADC Mx pin configuration

Down Mx manually controlled via JP5-7Up 3 Mx pin configured for compatibility with EVM software

S5 ADC IN1 connectionUp Inputs connected to terminal blocksDown Inputs connected to buffers

S6 ADS131A04 RESET button (press to reset ADC)S7 Master/Slave interface connection

Down Interface configured for device is master (DRDY → CS)Up Interface configured for device is slave (CS → CS)

S8 ADC IN4 connectionUp Inputs connected to terminal blocksDown Inputs connected to buffers

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3.2 Header and Connector ReferenceThis section provides the connection information and detail for all of the headers and connectors on theEVM hardware.

3.2.1 JTAG HeaderThe J2 header is provided for programming the on-board processor with firmware updates or userfirmware. Exercise care when using the JTAG since it is possible to erase the EVM firmware and not beable to communicate with the EVM software application. Table 4 shows the J2 header functions.

Table 4. JTAG Header, J2

Function Signal Name PinProcessor RESET Signal RESET 1JTAG test data out signal TDO 2JTAG test data in signal TDI 3JTAG test mode select signal TMS 4JTAG test clock signal TCK 5Debug UART receive signal RX 6Debug UART transmit signal TX 7

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3.2.2 Analog Input HeadersJ6, J7, J9, and J10 provide headers to connect external analog signals to the EVM for evaluationpurposes. The functions for these headers are listed in Table 5 through Table 8 .

WARNING

This EVM is not intended for connection to highvoltage. Do not connect inputs of this EVM to voltages higher than5 VAC to minimize shock hazard.

Table 5. Analog Input Header, J6

Function Signal Name PinAnalog input – to ADC/op amp IN1– 1Ground GND 2Analog input + to ADC/op amp IN1+ 3


Function Signal Name PinAnalog input – to ADC/op amp IN2– 1Analog input + to ADC/op amp IN2+ 2


Function Signal Name PinAnalog input – to ADC/op amp IN3– 1Analog input + to ADC/op amp IN3+ 2


Function Signal Name PinAnalog input – to ADC/op amp IN4– 1Ground GND 2Analog input + to ADC/op amp IN4+ 3

3.2.3 External IOVDD ConnectionThe EVM provides the capability to connect an external supply for IOVDD (see Table 9).

Table 9. External IOVDD Header, J11

Function Signal Name PinExternal IOVDD IOVDD 1Ground GND 2

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3.2.4 Digital Interface HeaderTable 10 lists the functions and signals for the digital interface.

(1) Odd numbered pins not included are connected to microprocessor inputs whose functionality is notused for this EVM. SeeFigure 10 for connection details.

(2) Even numbered pins not included are not connected.

Table 10. Digital Interface, J3

Function Signal Name Pin NumberProcessor Side (1) ADC Side (2)

No Connnect NA 1 2SPI 0 MISO 3 4

MOSI 5 6CS 7 8SCLK 9 10DRDY 11 12DONE 13 14

Bank1 level shifter voltage IOVDD 19 20Bank2 level shifter voltage IOVDD 37 38Bank3 level shifter voltage IOVDD 55 56

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4 Software Details

4.1 Installing the Software

4.1.1 Delta-Sigma Evaluation EngineDownload the Delta-Sigma ADC EvaluaTIon Software installer from the EVM tool page and save to aknown folder. Run the installer and follow the on-screen prompts. Note that future software versions mayshow slightly different screens.

Figure 3. Delta-Sigma Evaluation Engine Installation Instructions

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http://www.ti.com/tool/ADS131A04EVM

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4.1.2 ADS131A04 Device PackageDownload the ADS131A04 device package installer from the EVM tool page and save to a known folder.Run the ADS131A04 device package installer and follow the on-screen prompts. Note that future softwareversions may show slightly different screens.

Figure 4. ADS131A04 Device Package Installation Instructions

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http://www.ti.com/tool/ADS131A04EVM

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4.2 Connecting to the EVM HardwareAfter the Delta-Sigma ADC EvaluaTIon Software and the ADS131A04 device package are installed,ensure that all jumpers and switches are in their default positions per Table 2, and then connect thehardware with the provided USB mini cable. Start the Delta-Sigma Evaluation Engine. The GUIautomatically detects the connected hardware and displays the device register map under the Main tab asshown in Figure 5.

Figure 5. ADS131A04 Main Tab

4.3 Using the Software With the ADS131A04EVMThis section covers the functionality of the ADS127L01 device package only. For more information aboutthe Delta-Sigma Evaluation Engine, refer to the PA Delta-Sigma Evaluation Software User's Guide(SBAU260).

Upon startup, the GUI scans for the connected hardware. Once the ADS131A04EVM is plugged in, theMain tab refreshes to display the ADS131A04 Register Map as shown in Figure 5. The Main tab alsogrants user control over register settings and provides a detailed description for the current values in eachregister.

4.3.1 Data CollectionData is collected through the analysis engine client which is accessed by clicking the corresponding iconin the upper left area in the Main tab. Details about data collection and saving collected data to a file aregiven in the PA Delta-Sigma Software User's Guide.

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4.3.2 ADS131A04-Specific CommandsTable 11 shows the ADS131A04-specific commands that can be used in the Scripts tab. For moreinformation about scripts, refer to the PA Delta-Sigma Evaluation Software User's Guide (SBAU260).

Table 11. ADS131A04 EVM Device-Specific Software Commands

Command Description FormatNULL Null command NULLRESET Software reset - forces device in a POR state RESETSTANDBY Enter a low power state STANDBYWAKEUP Wakeup from reset or standby mode WAKEUPLOCK Ignore all communication except UNLOCk LOCKUNLOCK Bring device out of LOCK UNLOCKRREGS Read <number> registers beginning at <address> RREG <address> <number>WREG Write register <address> with <data> WREG <address> <data>WREGS Write registers beginning with <address> with all data listed beginning

with <data0>WREG <address> <data0> <data1>…

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5 EVM Hardware Details

5.1 Analog InputsThe analog inputs to the EVM can be connected at the terminal blocks located on the left side of theboard (J6, J7, J9, and J10).

J6 (ADC IN1 channel) provides an optional fully-differential buffer that can be installed to evaluate theeffects of a buffered input channel. J10 (ADC IN4 channel) provides an optional buffer that can beinstalled to evaluate the effects of a single-ended buffered input channel.

WARNING

This EVM is not intended for connection to highvoltage. Do not connect inputs of this EVM to voltages higher than5 VAC to minimize shock hazard.

5.2 Digital InputsAccess the digital signals of the device via J3. This header allows for the connection to a logic analyzer orwhen the EVM is used in a stand-alone configuration for connections to the microprocessor ormicrocontroller.

If controlling the ADS131A04 with an external processor is desired, power down the onboardTM4C1294NCPDT by placing a jumper on JP1.

5.3 ClockBy default, a clock is supplied to the ADC via an external 16.384-MHz crystal.

To connect an external clock to the device, do the following:1. Remove R80 and R83, if they are populated.2. Connect the external clock to JP5 pin 1.

5.4 Mode PinsThe ADC Mx (mode) pins are controlled via S4 and JP5-7.

For operation with the EVM software, S4 should be switched to the up position (EVM Default), whichconnects the mode pins to default values that work with the EVM software.

NOTE: For the software to communicate with the hardware, S4 should be used in the EVM Defaultposition. The EVM may be removed and used separately with other modes of operation.

Switch S4 to the down position (Manual) for manual control of the mode pins and now JP5-7 controls themode pins. The mode pins are tri-state pins so JP5-7 have valid configuration in 1-2 (connected toIOVDD), 2-3 (connect to DGND), and open connection (floating).

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5.4.1 Master and Slave ConfigurationS7 must be configured to agree with the Mx pin settings for the master or slave configuration of thehardware. By default, S7 is placed in the down position for slave mode operation. Switching S7 to upconfigures the hardware for master mode.

5.5 ADC ReferenceThe reference of the ADC can be provided via the reference and buffer on the EVM or from an externalsource.

To use the reference and buffer on the EVM, ensure that JP9 is installed. This is the default configurationof the hardware.

To use an external reference, remove JP9 and connect the external reference to JP9, pin 1.

5.6 ResetReset the ADC by pressing S6.

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6 Power Supply Connections – EVM and ADC

6.1 Powering the EVMThe EVM is only powered by the USB connection at J1.

6.2 Powering the ADS131A04The ADS131A04 analog supply is provided by AVDD and AVSS connections. The ADC is designed to beoperated by either via single or bipolar supply.

6.2.1 Single-Supply ConfigurationTo connect the ADC in a single-supply configuration, install a jumper on JP11, pins 1-2. This connects 3.3V to AVDD and AGND to AVSS.

6.2.2 Bipolar Supply ConfigurationTo connect the ADC in a bipolar supply configuration, install a jumper on JP11, pin 2-3. This connects 2.5V to AVDD and –2.5 V to AVSS.

6.2.3 Charge Pump OperationTo use the charge pump on the ADS131A04, the device must be configured in single-supply operation byshorting pins 1-2 on JP11. Next, remove the jumper on JP8, if it is installed. Finally, correctly set theregisters in the ADS131A04 using the EVM software.

If the charge pump is unused, JP8 must be installed.

CAUTIONDo not operate the ADC in bipolar mode with the charge pump enabled. EnsureJP8 is removed before changing the JP11 connection to bipolar operation.

6.2.4 IOVDD SupplyInstalling JP10 allows the use of an external IOVDD voltage for the ADS131A04 which can be connectedat J11.

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www.ti.com ADS131A04 Bill of Materials, PCB Layouts, and Schematics




7 ADS131A04 Bill of Materials, PCB Layouts, and Schematics

7.1 Bill of Materials

NOTE: All components should be compliant with the European Union Restriction on Use of Hazardous Substances (RoHS) Directive. Some partnumbers may be either leaded or RoHS. Verify that purchased components are RoHS-compliant. (For more information about TI'sposition on RoHS compliance, see http://www.ti.com.)

Table 12. ADS131A04 Bill of MaterialsDesignator Qty Value Description Package Reference Part Number Manufacturer Alternate Part

NumberAlternateManufacturer

!PCB1 1 Printed Circuit Board PA015 Any

C1, C20 2 2.2uF CAP, CERM, 2.2 µF, 35 V, +/- 10%, X5R, 0603 0603 GRM188R6YA225KA12D Murata

C2, C3, C4, C7, C9, C10,C11, C16, C17, C18, C19,C22, C23, C24, C25, C30,C35, C71, C82, C99, C104

21 0.1uF CAP, CERM, 0.1 µF, 25 V, +/- 5%, X7R, 0603 0603 06033C104JAT2A AVX

C5, C6 2 27pF CAP, CERM, 27 pF, 50 V, +/- 5%, C0G/NP0, 0603 0603 06035A270JAT2A AVX

C8 1 10uF CAP, CERM, 10 µF, 25 V, +/- 20%, X5R, 0603 0603 GRM188R61E106MA73 Murata

C12, C13 2 6.8pF CAP, CERM, 6.8 pF, 50 V, +/- 4%, C0G/NP0, 0603 0603 06035A6R8CAT2A AVX

C14, C15 2 12pF CAP, CERM, 12 pF, 50 V, +/- 5%, C0G/NP0, 0603 0603 C0603C120J5GACTU Kemet

C21, C38, C39, C41, C42,C70, C79, C81, C87, C102,C103, C109, C110, C114,C115, C116, C118, C119,C121, C122, C124, C126

22 1uF CAP, CERM, 1 µF, 25 V, +/- 10%, X7R, 0603 0603 GRM188R71E105KA12D Murata

C31, C33, C36 3 10uF CAP, CERM, 10 µF, 35 V, +/- 10%, X7R, 1206 1206 GMK316AB7106KL Taiyo Yuden

C32 1 22uF CAP, CERM, 22 µF, 16 V, +/- 20%, X7R, 1210 1210 C3225X7R1C226M TDK

C34, C83, C86, C89, C93,C94, C100, C105, C108

9 100pF CAP, CERM, 100 pF, 25 V, +/- 10%, X7R, 0603 0603 06033C101KAT2A AVX

C37, C40, C43, C84, C90,C95, C106, C113, C117,C120, C128

11 1000pF CAP, CERM, 1000 pF, 100 V, +/- 5%, X7R, 0603 0603 06031C102JAT2A AVX

C68, C77 2 1500pF CAP, CERM, 1500 pF, 100 V, +/- 5%, X7R, 0603 0603 06031C152JAT2A AVX

C69, C78, C80, C123,C125, C127

6 0.01uF CAP, CERM, 0.01 µF, 100 V, +/- 10%, X7R, 0603 0603 06031C103KAT2A AVX

C72 1 10uF CAP, CERM, 10 µF, 10 V, +/- 10%, X7R, 0805 0805 GRM21BR71A106KE51L Murata

C73 1 0.22uF CAP, CERM, 0.22 µF, 16 V, +/- 10%, X7R, 0603 0603 C0603C224K4RACTU Kemet

C74, C75, C76, C92 4 10pF CAP, CERM, 10 pF, 50 V, +/- 5%, C0G/NP0, 0603 0603 06035A100JAT2A AVX

C85, C91, C96, C107 4 2700pF CAP, CERM, 2700 pF, 50 V, +/- 5%, C0G/NP0, 0603 0603 GRM1885C1H272JA01D Murata

C97, C98 2 8.2pF CAP, CERM, 8.2 pF, 50 V, +/- 3%, C0G/NP0, 0603 0603 06035A8R2CAT2A AVX

C101 1 0.22uF CAP, CERM, 0.22 µF, 25 V, +/- 10%, X7R, 0603 0603 GRM188R71E224KA88D Murata

C111, C112 2 100uF CAP, CERM, 100 µF, 10 V, +/- 20%, X5R, 1206_190 1206_190 C3216X5R1A107M160AC TDK

D1, D2, D4 3 Green LED, Green, SMD LED_0603 LTST-C191TGKT Lite-On

D3 1 Red LED, Red, SMD LED_0603 LTST-C191KRKT Lite-On

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ADS131A04 Bill of Materials, PCB Layouts, and Schematics www.ti.com




Table 12. ADS131A04 Bill of Materials (continued)Designator Qty Value Description Package Reference Part Number Manufacturer Alternate Part


D9, D10 2 Yellow LED, Yellow, SMD LED, 1.3x0.65x0.8mm LY L29K-J1K2-26-Z OSRAM

H1, H2, H3, H4 4 Bumpon, Cylindrical, 0.312 X 0.200, Black Black Bumpon SJ61A1 3M

J1 1 Connector, Receptacle, Micro-USB Type B, R/A, BottomMount SMT

7.5x2.45x5mm 0473460001 Molex

J2 1 Header, 100mil, 7x1, Gold, TH 7x1 Header TSW-107-07-G-S Samtec

J6, J10 2 Terminal Block, 6A, 3.5mm Pitch, 3-Pos, TH 10.5x8.2x6.5mm ED555/3DS On-Shore Technology

J7, J9, J11 3 Terminal Block, 6A, 3.5mm Pitch, 2-Pos, TH 7.0x8.2x6.5mm ED555/2DS On-Shore Technology

J8, JP1, JP2, JP8, JP9,JP10

6 Header, 100mil, 2x1, Gold, TH 2x1 Header TSW-102-07-G-S Samtec

JP3 1 Header, 100mil, 3x2, Gold, TH 3x2 Header TSW-103-07-G-D Samtec

JP5, JP6, JP7, JP11 4 Header, 100mil, 3x1, Gold, TH 3x1 Header TSW-103-07-G-S Samtec

L1 1 1uH Inductor, Wirewound, Ferrite, 1 µH, 2.05 A, 0.045 ohm, SMD 1210 LQH32PN1R0NN0 Murata

Q1 1 -20V MOSFET, P-CH, -20 V, -0.39 A, SOT-323 SOT-323 BSS223PWH6327 Infineon Technologies None

R1, R40, R57, R63, R67,R68, R90

7 1.00k RES, 1.00 k, 1%, 0.1 W, 0603 0603 CRCW06031K00FKEA Vishay-Dale

R2 1 8.06k RES, 8.06 k, 1%, 0.1 W, 0603 0603 CRCW06038K06FKEA Vishay-Dale

R3, R5, R7, R10, R15, R16,R19, R65, R74, R104

10 10.0k RES, 10.0 k, 1%, 0.1 W, 0603 0603 CRCW060310K0FKEA Vishay-Dale

R4, R11, R84 3 1.00Meg RES, 1.00 M, 1%, 0.1 W, 0603 0603 CRCW06031M00FKEA Vishay-Dale

R6, R8, R12, R70, R72,R76, R79, R82, R86, R92,R94, R95, R96, R100

14 100 RES, 100, 1%, 0.1 W, 0603 0603 CRCW0603100RFKEA Vishay-Dale

R9, R17, R33, R36 4 0 RES, 0, 5%, 0.1 W, 0603 0603 CRCW06030000Z0EA Vishay-Dale



R18 1 51 RES, 51, 5%, 0.1 W, 0603 0603 CRCW060351R0JNEA Vishay-Dale

R20, R24, R27, R32, R58,R73, R99, R102

8 100k RES, 100 k, 1%, 0.1 W, 0603 0603 CRCW0603100KFKEA Vishay-Dale

R22, R23, R25, R97, R101 5 681 RES, 681, 1%, 0.1 W, 0603 0603 CRCW0603681RFKEA Vishay-Dale

R28, R39, R41 3 0.1 RES, 0.1, 1%, 0.1 W, 0603 0603 ERJ-L03KF10CV Panasonic

R29 1 768k RES, 768 k, 1%, 0.1 W, 0603 0603 RC0603FR-07768KL Yageo America

R30 1 20.0k RES, 20.0 k, 1%, 0.1 W, 0603 0603 RC0603FR-0720KL Yageo America

R31 1 215k RES, 215 k, 1%, 0.1 W, 0603 0603 RC0603FR-07215KL Yageo America

R59, R60, R61, R62 4 499 RES, 499, 1%, 0.1 W, 0603 0603 CRCW0603499RFKEA Vishay-Dale

R64, R66 2 49.9 RES, 49.9, 1%, 0.1 W, 0603 0603 CRCW060349R9FKEA Vishay-Dale

R69, R71, R75, R77, R78,R80, R81, R83, R85, R87,R88, R89, R91, R93

14 0 RES, 0, 5%, 0.1 W, 0603 0603 ERJ-3GEY0R00V Panasonic

R98 1 1.00 RES, 1.00, 1%, 0.1 W, 0603 0603 CRCW06031R00FKEA Vishay-Dale


S3, S6 2 Switch, Tactile, SPST-NO, 0.05A, 12V, SMT Switch, 4.4x2x2.9 mm TL1015AF160QG E-Switch

S4 1 Switch, Toggle, SPDT 1Pos, TH 7 X 11 X4.5 mm G12AP NKK Switches

S5, S8 2 Switch, DPDT, On-On, 0.4 VA, 28 V, TH DPDT Switch, 4.5x7mm G22AP NKK Switches

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S7 1 Switch, Slide, SPDT 100mA, SMT Switch, 5.4x2.5x2.5mm CAS-120TA Copal Electronics

SH-J1, SH-J2, SH-J3, SH-J4, SH-J6, SH-J7, SH-J8,SH-J9, SH-J10, SH-J11,SH-J12

11 1x2 Shunt, 100mil, Gold plated, Black Shunt 969102-0000-DA 3M SNT-100-BK-G Samtec

TP7, TP8, TP9, TP10,TP11, TP21, TP22, TP23

8 Double Terminal, Turret, TH, Double Keystone1573-2 1573-2 Keystone

TP19, TP20 2 Red Test Point, Miniature, Red, TH Red Miniature Testpoint 5000 Keystone

U1 1 Tiva C Series Microcontroller, PDT0128A PDT0128A TM4C1294NCPDTI3R Texas Instruments TM4C1294NCPDTI3 Texas Instruments

U2 1 Highly Integrated Full Featured Hi-Speed USB 2.0 ULPITransceiver, QFN-32

5x5 QFN-32 USB3320C-EZK Microchip

U3 1 USB ESD Solution with Power Clamp, 4 Channels, -40 to +85degC, 6-pin SON (DRY), Green (RoHS & no Sb/Br)

DRY0006A TPD4S012DRYR Texas Instruments Equivalent Texas Instruments

U4 1 256K I2C™ CMOS Serial EEPROM, TSSOP-8 TSSOP-8 24AA256-I/ST Microchip

U5 1 8-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATORFOR OPEN-DRAIN AND PUSH-PULL APPLICATIONS,RGY0020A

RGY0020A TXS0108ERGYR Texas Instruments Texas Instruments

U6 1 SINGLE BUFFER/DRIVER WITH OPEN-DRAIN OUTPUT,DCK0005A

DCK0005A SN74LVC1G07DCKR Texas Instruments SN74LVC1G07DCKT Texas Instruments

U9 1 Dual Inverter Buffer/Driver With Open-Drain Outputs,DCK0006A

DCK0006A SN74LVC2G06DCKR Texas Instruments Texas Instruments

U11 1 Single Inverter Buffer/Driver With Open-Drain Output,DCK0005A


U13 1 TINY 1.5-A BOOST CONVERTER WITH ADJUSTABLEINPUT CURRENT LIMIT, DSG0008A

DSG0008A TPS61252DSGR Texas Instruments TPS61252DSGT Texas Instruments

U14 1 36-V, 1-A, 4.17-uVRMS, RF LDO Voltage Regulator,RGW0020A

RGW0020A TPS7A4700RGWR Texas Instruments TPS7A4700RGWT Texas Instruments

U15 1 Single Output High PSRR LDO, 150 mA, Fixed 1.8 V Output,2.5 to 6.5 V Input, with Low IQ, 5-pin SC70 (DCK), -40 to 85degC, Green (RoHS & no Sb/Br)

DCK0005A TPS71718DCKR Texas Instruments Equivalent Texas Instruments

U16 1 3-Pin Voltage Supervisors with Active-Low, Open-DrainReset, DBZ0003A

DBZ0003A TLV803MDBZR Texas Instruments TLV803MDBZT Texas Instruments

U17 1 1-A Low-Dropout Regulator With Reverse Current Protection,DRV0006A

DRV0006A TPS73733DRVR Texas Instruments TPS73733DRVT Texas Instruments

U25 1 Ultra Low Power, Rail-to-Rail Output, Fully-DifferentialAmplifier, DGK0008A

DGK0008A THS4531AIDGK Texas Instruments Texas Instruments

U26, U27 2 1-Ohm DUAL SPDT ANALOG SWITCH 5-V/3.3-V 2-CHANNEL 2:1 MULTIPLEXER/DEMULTIPLEXER,DGS0010A

DGS0010A TS5A23159DGSR Texas Instruments TS5A23159DGST Texas Instruments

U28 1 Four Channel Analog Front-End for Power Monitoring,Control, and Protection, PBS0032A

PBS0032A ADS131A04IPBS Texas Instruments Texas Instruments

U29 1 50 MHz, Low-Noise, Single-Supply Rail-to-Rail OperationalAmplifier, 2.2 to 5.5 V, -40 to 125 degC, 5-pin SOT23(DBV0005A), Green (RoHS & no Sb/Br)

DBV0005A OPA365AIDBVR Texas Instruments Equivalent Texas Instruments

U30, U33 2 AUTOSWITCHING POWER MUX, DRB0008B DRB0008B TPS2115ADRBR Texas Instruments TPS2115ADRBT Texas Instruments

U31 1 Low-Noise, Very Low Drift, Precision VOLTAGEREFERENCE, DGK0008A

DGK0008A REF5025IDGKR Texas Instruments REF5025IDGKT Texas Instruments

http://www.ti.com












U35 1 0.9-V to 6.5-V, Nanopower Comparator, DCK0005A DCK0005A TLV3691IDCKR Texas Instruments TLV3691IDCKT Texas Instruments

U36 1 UNREGULATED 60-mA CHARGE PUMP VOLTAGEINVERTER, DBV0005A

DBV0005A TPS60403DBVR Texas Instruments TPS60403DBVT Texas Instruments

U37 1 Single Output High PSRR LDO, 200 mA, Fixed -2.5 V Output,-10 to -2.7 V Input, 5-pin SOT-23 (DBV), -40 to 125 degC,Green (RoHS & no Sb/Br)

DBV0005A TPS72325DBVT Texas Instruments Equivalent Texas Instruments

Y1 1 Crystal, 24 MHz, 18 pF, SMD ABM3 ABM3-24.000MHZ-D2Y-T Abracon Corporation

Y2 1 CRYSTAL, 32.768KHZ, 7PF, SMD 1.5x1.4x6.7mm SSPT7F-7PF20-R Seiko Instruments

Y3 1 Crystal, 25 MHz, 18 pF, SMD ABM3 ABM3-25.000MHZ-D2Y-T Abracon Corporation

Y4 1 Crystal, 16.384 MHz, 20 pF, SMD SMD, 4-Leads, Body7.2x5.2mm

407F35E016M3840 CTSElectrocomponents

C26, C27, C28, C29, C45,C54, C56, C60, C65, C88

0 0.1uF CAP, CERM, 0.1 µF, 25 V, +/- 5%, X7R, 0603 0603 06033C104JAT2A AVX

C44, C46, C48, C51, C52,C53, C62, C63, C64

0 10uF CAP, CERM, 10 µF, 35 V, +/- 10%, X7R, 1206 1206 GMK316AB7106KL Taiyo Yuden

C47, C50, C55, C61, C66 0 0.01uF CAP, CERM, 0.01 µF, 25 V, +/- 10%, X7R, 0603 0603 GRM188R71E103KA01D Murata

C49 0 1uF CAP, CERM, 1 µF, 25 V, +/- 10%, X7R, 0603 0603 GRM188R71E105KA12D Murata

C57 0 1100pF CAP, CERM, 1100 pF, 50 V, +/- 5%, C0G/NP0, 0603 0603 GRM1885C1H112JA01D Murata

C58 0 0.22uF CAP, CERM, 0.22 µF, 25 V, +/- 10%, X5R, 0603 0603 06033D224KAT2A AVX

C59 0 10pF CAP, CERM, 10 pF, 50 V, +/- 5%, C0G/NP0, 0603 0603 06035A100JAT2A AVX

C67 0 4700pF CAP, CERM, 4700 pF, 100 V, +/- 10%, X7R, 0603 0603 06031C472KAT2A AVX

D5 0 12V Diode, TVS, Uni, 12 V, 600 W, SMB SMB SMBJ12A-13-F Diodes Inc.

D6 0 Green LED, Green, SMD LED_0603 LTST-C191TGKT Lite-On

D7 0 20V Diode, Schottky, 20 V, 1 A, SOD-123F SOD-123F PMEG2010AEH,115 NXP Semiconductor

D8 0 20V Diode, Schottky, 20 V, 1.1 A, DO-219AB DO-219AB SL02-GS08 Vishay-Semiconductor

F1 0 Fuse, 2 A, 125 V, SMD SMD, 2-Leads, Body9.73x5.03mm

0154002.DRT Littelfuse

FID1, FID2, FID3, FID4,FID5, FID6

0 Fiducial mark. There is nothing to buy or mount. N/A N/A N/A

H5 0 CABLE USB-A TO MICRO USB-B 0.5M 102-1092-BL-00100 CNC Tech - -

J3 0 Header, 2.54 mm, 28x2, Gold, TH Header, 2.54 mm, 28x2, TH TSW-128-07-S-D Samtec

J4 0 Terminal Block, 6A, 3.5mm Pitch, 2-Pos, TH 7.0x8.2x6.5mm ED555/2DS On-Shore Technology

J5 0 Connector, DC Jack 2.1X5.5 mm, TH POWER JACK,14.4x11x9mm

PJ-102A CUI Inc.

JP4 0 Header, 100mil, 2x1, Gold, TH 2x1 Header TSW-102-07-G-S Samtec

L2 0 3.3uH Inductor, Shielded Drum Core, Ferrite, 3.3 µH, 1.5 A, 0.033ohm, SMD

CDPH4D19F CDPH4D19FNP-3R3MC Sumida

L3 0 10uH Inductor, Shielded Drum Core, Ferrite, 10 µH, 1.2 A, 0.124ohm, SMD

CDRH5D18 CDRH5D18NP-100NC Sumida

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R21, R26, R44, R56 0 10.0k RES, 10.0 k, 1%, 0.1 W, 0603 0603 CRCW060310K0FKEA Vishay-Dale

R34, R35, R37, R38 0 0 RES, 0, 5%, 0.1 W, 0603 0603 CRCW06030000Z0EA Vishay-Dale

R42 0 681 RES, 681, 1%, 0.1 W, 0603 0603 CRCW0603681RFKEA Vishay-Dale



R46 0 158k RES, 158 k, 1%, 0.1 W, 0603 0603 CRCW0603158KFKEA Vishay-Dale






R52 0 10.0 RES, 10.0, 1%, 0.1 W, 0603 0603 CRCW060310R0FKEA Vishay-Dale


R54 0 1.30Meg RES, 1.30 M, 1%, 0.1 W, 0603 0603 CRCW06031M30FKEA Vishay-Dale


S1, S2 0 Switch, Tactile, SPST-NO, 0.05A, 12V, SMT Switch, 4.4x2x2.9 mm TL1015AF160QG E-Switch

SH-J5 0 1x2 Shunt, 100mil, Gold plated, Black Shunt 969102-0000-DA 3M SNT-100-BK-G Samtec

U7, U10 0 8-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATORFOR OPEN-DRAIN AND PUSH-PULL APPLICATIONS,RGY0020A

RGY0020A TXS0108ERGYR Texas Instruments Texas Instruments

U8, U12 0 SINGLE BUFFER/DRIVER WITH OPEN-DRAIN OUTPUT,DCK0005A


U18 0 1.5-A LOW-NOISE FAST-TRANSIENT-RESPONSE LOW-DROPOUT REGULATOR, DCQ0006A

DCQ0006A TL1963ADCQR Texas Instruments TL1963ADCQT Texas Instruments

U19 0 3-PIN VOLTAGE SUPERVISORS, DBV0003A DBV0003A TPS3809I50QDBVRQ1 Texas Instruments Texas Instruments

U20 0 Single Inverter Buffer/Driver With Open-Drain Output,DCK0005A


U21 0 Step-Up DC-DC Converter with Forced PWM Mode, 2.3 to 6V, -40 to 105 degC, 8-pin SOP (PW8), Green (RoHS & noSb/Br)

PW0008A TPS61085TPWR Texas Instruments Equivalent Texas Instruments

U22 0 Single Output High PSRR LDO, 150 mA, Adjustable 1.2 to 33V Output, 3 to 36 V Input, with Ultra-Low Noise, 8-pin MSOP(DGN), -40 to 125 degC, Green (RoHS & no Sb/Br)

DGN0008D TPS7A4901DGNR Texas Instruments Equivalent Texas Instruments

U23 0 DC-DC INVERTER, DRC0010J DRC0010J TPS63700DRCR Texas Instruments TPS63700DRCT Texas Instruments

U24 0 Single Output High PSRR LDO, 200 mA, Adjustable -1.18 to -33 V Output, -3 to -36 V Input, with Ultra-Low Noise, 8-pinMSOP (DGN), -40 to 125 degC, Green (RoHS & no Sb/Br)

DGN0008D TPS7A3001DGNR Texas Instruments Equivalent Texas Instruments

Notes: Unless otherwise noted in the Alternate Part Number or Alternate Manufacturer columns, all parts may be substituted with equivalents.

http://www.ti.com






7.2 PCB LayoutsFigure 6 and Figure 7 illustrate the PCB layouts.

Figure 6. Top Soldermask

Figure 7. Bottom Soldermask

http://www.ti.com


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4

4

5

5

6

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A A

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Mod. Date:

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B http://www.ti.comContact: http://www.ti.com/support

ADS131A04EVMProject Title:Designed for: Public Release

Assembly Variant: -001

© Texas Instruments 2015

Drawn By:Engineer: G Hupp

Texas Instruments and/or its licensors do not warrant the accuracy or completeness of this specificati on or any information contained therein. Texas Instruments and/or its licensors do notwarrant that this design will meet the specifications, will be suitable for your application or fit for any particular purpose, or will operate in an implementation. Texas Instruments and/or itslicensors do not warrant that the design is product ion worthy. You should completely validate and test your design implementation to confirm the system f unctionality for your application.

Version control disabledSVN Rev:PA015Number: Rev: A

TID #: N/AOrderable: ADS131A04EVM

VBUS1

D-2

D+3

ID4

GND5

678

11

10

9 J1

D+1

D-2

ID3

GND4

NC5

VBUS6

U3

TPD4S012DRYR

CLKOUT1

NXT2

DATA[0]3

DATA[1]4

DATA[2]5

DATA[3]6

DATA[4]7

REFSEL[0]8

DATA[5]9

DATA[6]10

REFSEL[1]11

NC12

DATA[7]13

REFSEL[2]14

SPK_L15

SPK_R16

CPEN17

DP18

DM19

VDD3320

VBAT21

VBUS22

ID23

RBIAS24

XO25

REFCLK26

RESET27

VDD1828

STP29

VDD1830

DIR31

VDDIO32

PAD33

U2

USB3320C-EZK

1.8VDIG_3.3V DIG_3.3V

DIG_3.3V

8.06kR2

27pFC6

27pFC5

1.00M

R424 MHz

12Y1

ULPI_DATA_BUS.USBD6ULPI_DATA_BUS.USBD7ULPI_CONTROL_BUS.USBDIRULPI_CONTROL_BUS.USBNXT

5

4

1

2

3

6

7

J2

JTAG header

UORXUOTX

BANK1_DIGITAL_BUS.UART_RXBANK1_DIGITAL_BUS.UART_TX

BANK2_DIGITAL_BUS.I2C_SDABANK2_DIGITAL_BUS.I2C_SCL

BANK3_DIGITAL_BUS.I2C_SDABANK3_DIGITAL_BUS.I2C_SCL

I2C1SCLI2C1SDA

BANK3_DIGITAL_BUS.SSI_DAT1BANK3_DIGITAL_BUS.SSI_DAT0BANK3_DIGITAL_BUS.SSI_FSBANK3_DIGITAL_BUS.SSI_CLKBANK3_DIGITAL_BUS.SSI_DAT2

BANK3_DIGITAL_BUS.SSI_DAT2BANK3_DIGITAL_BUS.SSI_DAT3

BANK3_DIGITAL_BUS.SSI_CLKBANK3_DIGITAL_BUS.SSI_FSBANK3_DIGITAL_BUS.SSI_DAT0BANK3_DIGITAL_BUS.SSI_DAT1

BANK1_DIGITAL_BUS.SSI_CLKBANK1_DIGITAL_BUS.SSI_FSBANK1_DIGITAL_BUS.SSI_DAT0BANK1_DIGITAL_BUS.SSI_DAT1

SSI2XDAT1SSI2XDAT0SSI2XFSSSSI2XCLK

SSI2XDAT3SSI2XDAT2

BANK2_DIGITAL_BUS.GPIO0BANK2_DIGITAL_BUS.GPIO1BANK2_DIGITAL_BUS.GPIO2BANK2_DIGITAL_BUS.GPIO3BANK2_DIGITAL_BUS.GPIO4BANK2_DIGITAL_BUS.GPIO5

USB_VBUS

S1DNP

10.0kR5

100

R6

0.1µF

C9

S2DNP

10.0kR7

100

R8

0.1µF

C10

GNDGND

GND

GND

GND

GND

1.00kR1

2.2µFC1

GND

10.0kR3

GND

0.1µF

C2

0.1µF

C3

0.1µF

C4

GND GND

DIG_3.3V 1.8VDIG_3.3V

VBAT VDDIO VDD18

0.1µF

C710µFC8

GND

BANK1_DIGITAL_BUS.SSI_OTHER1BANK1_DIGITAL_BUS.SSI_OTHER2

USB_VBUS

PQ05

PQ16

PQ211

PQ327

PM771

PM672

PM573

PM474

PM375

PM276

PM177

PM078

PL081

PL182

PL283

PL384

PL485

PL586

PL793

PL694

PQ4102

PP2103

PP3104

PP4105

PP5106

PN0107

PN1108

PN2109

PN3110

PN4111

PN5112

PP0118

PP1119

U1B

TM4C1294NCPDTI3R

DVDD_3.3V

DVDD_3.3V

PD01

PD12

PD23

PD34

PE312

PE213

PE114

PE015

PK018

PK119

PK220

PK321

PC722

PC623

PC524

PC425

PH029

PH130

PH231

PH332

PA033

PA134

PA235

PA336

PA437

PA538

PA640

PA741

PF042

PF143

PF244

PF345

PF446

PG049

PG150

PK760

PK661

PK562

PK463

PB291

PB392

PB095

PB196

PC3/TDO/SWO97

PC2/TDI98

PC1/TMS/SWDIO99

PC0/TCK/SWCLK100

PJ0116

PJ1117

PB5120

PB4121

PE4123

PE5124

PD4125

PD5126

PD6127

PD7128

U1A

TM4C1294NCPDTI3R

ULPI_CONTROL_BUS.USBRST

JTAG_RESET

BANK3_DIGITAL_BUS.BANK_ENABLEBANK2_DIGITAL_BUS.BANK_ENABLEBANK1_DIGITAL_BUS.BANK_ENABLE

Spare push-button

Spare push-button

(Connection to pg 3)

ULPI_DATA_BUS.USBD5ULPI_DATA_BUS.USBD4ULPI_DATA_BUS.USBD3ULPI_DATA_BUS.USBD2ULPI_DATA_BUS.USBD1ULPI_DATA_BUS.USBD0

ULPI_DATA_BUS

BANK1_DIGITAL_BUS

BANK2_DIGITALBANK2_DIGITAL_BUS

BANK3_DIGITALBANK3_DIGITAL_BUS

BANK1_DIGITALBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUSBANK1_DIGITAL_BUS

ULPI_CONTROL_BUS.USBSTPULPI_CONTROL_BUS.USBCLK

USBD0USBD1USBD2USBD3USBD4USBD5USBD6USBD7

ULPI_DATA

ULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA_BUSULPI_DATA

USBSTP

USBCLKUSBDIRUSBNXT

USBRST

ULPI_CONTROL

ULPI_CONTROLULPI_CONTROL_BUS

I2C_SDAI2C_SCL

SSI_DAT3SSI_DAT2SSI_DAT1SSI_DAT0

SSI_FSSSI_CLK

BANK_ENABLE

BANK_SPARE

BANK_SPAREEXTRA_NC





7.3 SchematicFigure 8 through Figure 14 illustrate the EVM schematics.

Figure 8. ADS131A04EVM Schematic

http://www.ti.com


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25 MHz

12

Y3

32.768KHZ

1

4 3

2

Y2

12pFC15

12pFC14 6.8pF

C13

6.8pF

C12

S3

10.0kR10

100

R12

0.1µF

C11

4.87k

R13

0.1µF

C19

0.1µF

C18

0.1µF

C17

0.1µF

C16

0.1µF

C221µFC21

2.2µFC20

GND

GND GND

GND

GND

GND

GND

GND

GND

GND

0R17

0.1µF

C23

51

R18

GND

1.00M

R11

0R9

2.00k

R14

EN0RXIN53

EN0RXIP54

EN0TXON56

EN0TXOP57

RBIAS59

WAKE64

HIB65

XOSC066

XOSC167

RST70

OSC088

OSC189

U1C

TM4C1294NCPDTI3R

VDD7

VDDA8

VREFA+9

GNDA10

VDD16

GND17

VDD26

VDD28

VDD39

VDD47

GND48

VDD51

VDD52

GND55

GND58

VBAT68

VDD69

VDD79

GND80

VDDC87

VDD90

VDD101

VDD113

GND114

VDDC115

VDD122

U1D

TM4C1294NCPDTI3R

TIVA Power

TIVA MiscDIG_3.3V

DIG_3.3V

JTAG_RESET

GND

JP1 External Controller EN

This jumper is used to hold TIVA in resetand disable level shifters when usingexternal microprocessor/microcontroller

A01

A12

A23

VSS4

SDA5

SCL6

WP7

VCC8

U4

24AA256-I/ST

10.0kR15

10.0kR16

GND

GND

DIG_3.3V

I2C_SDAI2C_SCLSSI_DAT3SSI_DAT2SSI_DAT1SSI_DAT0SSI_FSSSI_CLKBANK_ENABLE

BANK3_DIGITAL

BANK3_DIGITAL





Figure 9. ADS131A04EVM Power Schematic

http://www.ti.com


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A A

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1 2

3 4

5 6

7 8

9 10

11 12

13 14

15

17

19

21

23

25

27

29

31

33

35

37

39

16

18

20

22

24

26

28

30

32

34

36

38

40

41 42

43 44

45 46

47 48

49 50

51 52

53 54

55 56

J3

DNP

A11

VCCA2

A23

A34

A45

A56

A67

A78

A89

OE10

GND11

B812

B713

B614

B515

B416

B317

B218

VCCB19

B120

PAD21

U10

TXS0108ERGYR

DNP

A11

VCCA2

A23

A34

A45

A56

A67

A78

A89

OE10

GND11

B812

B713

B614

B515

B416

B317

B218

VCCB19

B120

PAD21

U7

TXS0108ERGYR

DNP

A11

VCCA2

A23

A34

A45

A56

A67

A78

A89

OE10

GND11

B812

B713

B614

B515

B416

B317

B218

VCCB19

B120

PAD21

U5

TXS0108ERGYR

GND

GND

GND

100kR20

100kR24

100kR27

Input digital voltage <= 3.3V

GND

GND

GND

SPI0_MISOSPI0_MOSISPI0_FSSPI0_SCLKSPI0_OTHERB

SPI0_OTHERAUART_TXUART_RXDIG_VOLT1

DIG_VOLT2

DIG_VOLT3

I2C0_SDAI2C0_SCLGPIO_5GPIO_4GPIO_3GPIO_2GPIO_1GPIO_0

I2C1_SDAI2C1_SCL

SPI1_SCLKSPI1_FSSPI1_MOSI/DATA0SPI1_MISO/DATA1SPI1_DATA2SPI1_DATA3

DVDD_3.3V

DIG_3.3V

DVDD_3.3V

GreenD2

681R23

NC1

A2

GND3

Y4

VCC5

U11

SN74LVC1G06DCKR

RedD3

681R25

GreenD1

681R22

AVDD_ADC

AVDD_ADCGND

GND

1A1

GND2

2A3

2Y4

VCC5

1Y6

U9

SN74LVC2G06DCKR

DVDD_3.3V

DVDD_3.3V

GND

GND

NC

1

2

3

4

5 U12SN74LVC1G07DCKR

DNP

GND

10.0kR26

DNP

NC

1

2

3

4

5

U8SN74LVC1G07DCKR

DNP

10.0k

R21DNP

10.0k

R19

NC

1

2

3

4

5

U6SN74LVC1G07DCKR

0.1µF

C25

0.1µF

C24

0.1µF

C26DNP

0.1µF

C27DNP

0.1µF

C28DNP

0.1µF

C29DNP

GND GND

GND

GND

GND

GND

LEDs for indication

ADC_SPI_CS

ADC_SPI_DONEADC_SPI_DRDY

ADC_SPI_MISOADC_SPI_MOSI

ADC_SPI_SCLK

ADS131A04_Digital

ADS131A04_Digital

IOVDD

IOVDD

IOVDD

BANK_ENABLE

I2C_SCLI2C_SDA

SSI_CLK

SSI_DAT0SSI_DAT1SSI_DAT2SSI_DAT3

SSI_FS

BANK3_DIGITAL

BANK3_DIGITAL

BANK_ENABLE

GPIO0GPIO1GPIO2GPIO3GPIO4GPIO5

I2C_SCLI2C_SDA

BANK2_DIGITAL

BANK2_DIGITAL

BANK_ENABLE

SSI_CLK

SSI_DAT0SSI_DAT1

SSI_FS

SSI_OTHER1SSI_OTHER2

UART_RXUART_TX

BANK1_DIGITAL

BANK1_DIGITAL

BANK2_DIGITAL_BUS.GPIO1



NT1

NT2

NT3

NT4

NT5

NT6

NT7





Figure 10. ADS131A04EVM Digital Header Schematic

http://www.ti.com


1

1

2

2

3

3

4

4

5

5

6

6

D D

C C

B B

A A

5 8

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USB_REG

10µFC36

0.1µFC35

GND1

VOUT2

FB3

ILIM4

PG5

EN6

SW7

VIN8

PAD9

U13

TPS61252DSGR

1µH

L1

215kR31

768kR29

20.0kR30

USB 5.0V to regulated 5.0V

10µFC31

0.1µF

C30

100kR32

GND

22µFC32

100pFC34

JP2

1µFC42

GND

1000pFC43

GND

1µF

C41

GND

1µFC39

GND

1µFC38

GND

GND

OUT1

NR/FB2

GND3

EN4

NC5

IN6

PAD7

U17

TPS73733DRVR

1.8V

DVDD_3.3V

USB_REG

EXT_5V

0.1

R28

0.1

R41

0.1

R39

GND1

RESET2

VDD3

U16

TLV803MDBZR

AVDD_ADC

1.00kR40

GND

GreenD4

1000pFC37

GND

GND

USB_VBUSP

GND GND

GND

GND

GND

USB_VBUS

TP5

DNP

TP3

DNP

TP12

DNP

TP1

DNP

TP2

DNP

TP13

DNP

TP6

DNP

TP7 TP8 TP9 TP10 TP11

GND

OUT1

NC2

SENSE3

6P4V24

6P4V15

3P2V6

GND7

1P6V8

0P8V9

0P4V10

0P2V11

0P1V12

EN13

NR14

IN15

IN16

NC17

NC18

NC19

OUT20

PAD21

U14

TPS7A4700RGWR

IN1

2

EN3

NR4

OUT5

GND

U15 TPS71718DCKR

1 2

3 4

5 6

JP3

1000pFC40

GND

0R38

DNP0R37

DNP0R36

0R35

DNP0R34

DNP0R33

GND

USB_IREG

10µFC33

GND

INT= 5V/150mA

3.3V/100mA

DIG_3.3V

EXT = 5V/300mA

Vout (V)

Programmable LDO Configuration (U14)

R33 (3P2V) R34 (1P6V) R35 (0P8V) R36 (0P4V) R37 (0P2V) R38 (0P1V)

1.4

1.5

1.8

2.5

3.0

3.3

4.5

5.0 INSTALLED

INSTALLEDINSTALLED INSTALLED

INSTALLEDINSTALLED

INSTALLED

INSTALLED

INSTALLED

INSTALLED

DNI = Do not install

DNI

DNI

DNIDNI

DNI

DNI

DNI

DNI

DNI

DNI

DNI

DNI

DNI

DNI

DNI

DNI

DNI

DNI DNI

DNI

DNI

DNI

DNI

DNI

DNI

DNI

DNI

INSTALLED DNI

INSTALLED

INSTALLED

INSTALLED

DNI

DNI

DNI

DNI

INSTALLED

INSTALLED

INSTALLED = install 0 Ohm jumper or short pads together

JP3 Position AVDD DVDD

1-3

3-5

USB 5V

EXT 5V

USB 5V

EXT 5V

USB_IREG

TP4

DNP

Remove/Install 0ohm resistors asneed to achievedesired outputvoltage





Figure 11. ADS131A04EVM Power USB Schematic

http://www.ti.com


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3

4

4

5

5

6

6

D D

C C

B B

A A

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COMP1

FB2

EN3

PGND4

SW5

IN6

FREQ7

SS8

U21

TPS61085TPWR

DNP

COMP1

GND2

VIN3

EN4

IN5

SW6

PS_GND7

OUT8

FB9

VREF10

PAD11

U23

TPS63700DRCR

DNP

OUT1

FB2

NC3

4

EN5

NR/SS6

DNC7

IN8

9

EP GND

U22TPS7A4901DGNR

DNP

EP GND

OUT1

FB2

NC3

4

EN5

NR/SS6

DNC7

IN8

9

U24TPS7A3001DGNR

DNP

12V

D5SMBJ12A-13-FDNP

EXT_5V

10µFC44DNP

10µFC46DNP

0.1µFC45DNP

NC1

A2

GND3

Y4

VCC5

U20

SN74LVC1G06DCKR

DNP

GreenD6

DNP

681R42

DNP

GND1

RESET2

VDD3

U19

TPS3809I50QDBVRQ1

DNP

0.01µFC47DNP

3.01kR45

DNP

9.31kR43

DNP

SHDN1

IN2

GND3

OUT4

ADJ5

PAD6

U18

TL1963ADCQR

DNP

10.0k

R44DNP

1

3

2

J5

PJ-102A

DNP

JP4DNP

10µFC63DNP

0.01µFC66DNP

-HVSS

0.01µFC61DNP

93.1kR55

DNP

10.0kR56

DNP

10µFC52DNP

0.01µFC55DNP

+HVDD

0.01µFC50DNP

453kR47

DNP

49.9kR49

DNP

F1

Fuse, 2 A, 125 V, SMD

DNP

10.0

R52DNP

0.1µFC60DNP

10µFC62DNP D8

DNP

4700pFC67DNP

1.30MR54

DNP

121kR51

DNP

100kR53

DNP10pF

C59

DNP

10µHL3

DNP

EXT_5V

10µFC48DNP

1µFC49DNP

0.1µFC56DNP

EXT_5V

10µFC51DNP

1100pFC57DNP

51.1kR48

DNP

158kR46

DNP

15.0kR50

DNP

D7

DNP

3.3µH

L2

DNP

0.22µFC58DNP

DCV_WALL

HVBoost

GND

GND

GND

GNDGND

GND

GND

GND

GND

GNDGND

GNDGND

GND

GND

GNDGND

GND

GND

GND

GND

GND

GND

GND

TP14

DNP

TP16

DNP

10µFC64DNP

10µFC53DNP

J4

ED555/2DS

DNP

0.1µFC65DNP

0.1µFC54DNP

TP15

DNP

TP17

DNP

12V/50mA

-12V/50mA

Replacement Fuse

Littlefuse P/N 0453002. (Fast Acting)Littlefuse P/N 0454002. (Slow acting)

Wall supply and terminal blockInput voltage = 5 - 12V





Figure 12. ADS131A04EVM Power External Schematic

http://www.ti.com


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2

2

3

3

4

4

5

5

6

6

D D

C C

B B

A A

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AIN1N1

AIN1P2

AIN2N3

AIN2P4

AIN3N5

AIN3P6

AIN4N7

AIN4P8

AVDD9

AVSS10

VNCP11

VREFP12

VREFN13

REFEXT14

IOVDD15

RESV16

RESET17

DONE18

DRDY19

DIN20

DOUT21

SCLK22

CS23

NC24

CLKIN/XTAL125

XTAL226

GND27

CAP28

IOVDD29

M030

M131

M232

U28

ADS131A04IPBS

1

2

3

J6

J7

J9

1

2

3

J10

1

2

3

JP5

1

2

3

JP6

1

2

3

JP7

16.384 MHz

1

3 4

2GG

Y4

499R61

499R62

499R60

100kR73

10.0kR74

100

R92

100

R942700pFC107

100pFC105

1000pFC106

100pFC108

1

2

3

4

5

6

7

8

VOCM

V+

V-

U25THS4531AIDGK

1

2

3

4

5

U29OPA365AIDBVR

1µFC103

1µFC102

0.22µFC101

0.01µFC69

0.01µFC78

0.1µFC88DNP

10pFC76

10pFC75

10pFC74

JP8

S6

IOVDD

100

R82

100

R862700pFC96

100pFC94

1000pFC95

100pFC100

100

R76

100

R792700pFC91

100pFC89

1000pFC90

100pFC93

100

R70

100

R72

0

R69

2700pFC85

100pFC83

1000pFC84

100pFC86

0

R71

0

R75

0

R78

0

R81

0

R85

0

R91

0

R93

M0 control M1 control M2 control

499R59

IOVDD

1

2

3

4

5

6

S5

G22AP

1.00kR67

1.00k

R63

1.00k

R68

1.00kR57

49.9R66

49.9R64

1500pFC68

1500pF

C77

1

2

3

4

5

6

S8

G22AP

0

R89

0

R870.1µF

C99

AVDD

IOVDD

AVDD

IOVDD

1µFC79

1µFC70

+2P5V

+2P5V

-2P5V

-2P5V

0.22µFC73

-2P5V

100kR58

+2P5V

0

R77

10pFC92

1µFC87

8.2pFC98

8.2pFC97

ADC_SPI_CS

0.1µFC71

10µFC72

AVDD

AVSS

AVSS

GND

GND GND

GND

GND

GND

GND GNDGNDGNDGND

GND

GND

0R831.00MR84

0R80

GND

M1

M0

1.00kR90

GND

0.01µFC80

AVSS

1µFC81

GND

0.1µFC104

-2P5V

+2P5V

0.1µFC82

-2P5V

+2P5V

GND

GND

External Clock input

AVSS

AVSS

AVSS

LOGOPCB

CAUTION. READ USER GUIDE BEFORE USE

J8

0

R88IOVDD

Mode selection (CSconnection)1-2 -> Master Mode2-3 -> Slave Mode

2 13

S7

GND

VREF

IN11

NO12

GND3

NO24

IN25

COM26

NC27

V+8

NC19

COM110

U27

TS5A23159DGSR

6

4

5

S4

G12AP

ADC_SPI_DONE

ADC_SPI_SCLK

ADC_SPI_DRDY

IN11

NO12

GND3

NO24

IN25

COM26

NC27

V+8

NC19

COM110

U26

TS5A23159DGSR

GNDM2

GND

GND

IOVDD

IOVDD

GND

10.0kR65

IOVDD

ADC_SPI_MOSIADC_SPI_MISO

AVSS

AVSS

AVSS

AVSS

AVSS

AVSS

AVSS

AVSS

ADC_SPI_CSADC_SPI_SCLKADC_SPI_MISOADC_SPI_MOSIADC_SPI_DONEADC_SPI_DRDY

ADS131A04_Digital

AD

S1

31A

04_

Dig

ita

l

IOVDD

TP18

DNPIOVDD

GND





Figure 13. ADS131A04EVM ADC Schematic

http://www.ti.com


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2

2

3

3

4

4

5

5

6

6

D D

C C

B B

A A

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OUT1

IN2

CFLY-3

GND4

CFLY+5

U36

TPS60403DBVR

1µF

C121

1µFC124 1µF

C1220.01µFC123

1µFC126

0.01µFC127

0.01µFC125

IN1

2

EN3

NR4

OUT5

GND

U32 TPS71733DCKR

IN1

2

EN3

NR4

OUT5

GND

U34 TPS71725DCKR

AVDD

1

2

3

JP11

AVSS

1µFC116

1µFC119

DNC1

VIN2

TEMP3

GND4

TRIM/NR5

VOUT6

NC7

DNC8

U31

REF5025IDGKR

1µFC114

100µFC111

100

R96

+2P5V

-2P5V

STAT1

D02

D13

ILIM4

GND5

IN26

OUT7

IN18

PAD9

U33

TPS2115ADRBR

IN2

EN3

OUT5

1

GND

NR4

U37 TPS72325DBVT

3

1

2

4

5

V+

GND

U35TLV3691IDCKR

+2P5V

-2P5V

AVSS100kR102

66.5kR103

Vth = -0.5V

-2P5V

100R100

TP19

TP20

AVDD_ADC

JP9

ADC reference and buffer

3.3V

GNDGND GND

GND

GND

GND

GND

1000pFC128

GND

1000pFC120

1000pFC117

GND

GND

1µFC118

1µFC115

GND

GND

1000pFC113

GND

GND

GND

TP21 TP22 TP23

GNDGND

AVSS

AVSS

AVSS

AVDD

Q1BSS223PWH6327

10.0kR104

+2P5V

GND

D1=0 => IN2 (+2.5V)D1=1 => IN1 (3.3V)

STAT1

D02

D13

ILIM4

GND5

IN26

OUT7

IN18

PAD9

U30

TPS2115ADRBR

DVDD_3.3V

GND

100kR99

GND

GND

J11

GND

100R95

IOVDD

1µFC109

D1=0 => IN2 (External)D1=1 => IN1 (LP)

ON = External IOVDDOFF = LP IOVDD

YellowD10

Yellow

D9

GND

GND

681R97

681R101

JP10

VREF

1µFC110

GND

1.00R98

100µFC112





Figure 14. ADS131A04EVM ADC Power Schematic

http://www.ti.com


Revision History www.ti.com



Revision History

Revision HistoryNOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Original (Month Year) to A Revision ....................................................................................................... Page

• Updated ADS131A04 EVM image to match Table 2 and reflect correct positions, changed caption. ......................... 4• Removed incorrect statement regarding digital signal header in the Digital Inputs section.................................... 14• Changed S4 switch statement from left position to down position in the Mode Pins section. ................................. 14

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STANDARD TERMS AND CONDITIONS FOR EVALUATION MODULES1. Delivery: TI delivers TI evaluation boards, kits, or modules, including demonstration software, components, and/or documentation

which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the termsand conditions set forth herein. Acceptance of the EVM is expressly subject to the following terms and conditions.1.1 EVMs are intended solely for product or software developers for use in a research and development setting to facilitate feasibility

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3 Regulatory Notices:3.1 United States

3.1.1 Notice applicable to EVMs not FCC-Approved:This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kitto determine whether to incorporate such items in a finished product and software developers to write software applications foruse with the end product. This kit is not a finished product and when assembled may not be resold or otherwise marketed unlessall required FCC equipment authorizations are first obtained. Operation is subject to the condition that this product not causeharmful interference to licensed radio stations and that this product accept harmful interference. Unless the assembled kit isdesigned to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit must operate under the authority ofan FCC license holder or must secure an experimental authorization under part 5 of this chapter.3.1.2 For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant:

CAUTIONThis device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may notcause harmful interference, and (2) this device must accept any interference received, including interference that may causeundesired operation.Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority tooperate the equipment.

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FCC Interference Statement for Class B EVM devicesNOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 ofthe FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residentialinstallation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordancewith the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interferencewill not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, whichcan be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or moreof the following measures:

• Reorient or relocate the receiving antenna.• Increase the separation between the equipment and receiver.• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.• Consult the dealer or an experienced radio/TV technician for help.

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Concerning EVMs Including Radio Transmitters:This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions:(1) this device may not cause interference, and (2) this device must accept any interference, including interference that maycause undesired operation of the device.

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Concerning EVMs Including Detachable Antennas:Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser)gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna typeand its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary forsuccessful communication. This radio transmitter has been approved by Industry Canada to operate with the antenna typeslisted in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated.Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibitedfor use with this device.

Concernant les EVMs avec antennes détachablesConformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type etd'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillageradioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotroperayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante. Leprésent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans lemanuel d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antennenon inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation del'émetteur

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If User uses EVMs in Japan, not certified to Technical Regulations of Radio Law of Japan, User is required by Radio Law ofJapan to follow the instructions below with respect to EVMs:1. Use EVMs in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal

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2. Use EVMs only after User obtains the license of Test Radio Station as provided in Radio Law of Japan with respect toEVMs, or

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http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page


【無線電波を送信する製品の開発キットをお使いになる際の注意事項】開発キットの中には技術基準適合証明を受けていないものがあります。技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの措置を取っていただく必要がありますのでご注意ください。1. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用

いただく。2. 実験局の免許を取得後ご使用いただく。3. 技術基準適合証明を取得後ご使用いただく。

なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。日本テキサス・イ

ンスツルメンツ株式会社東京都新宿区西新宿６丁目２４番１号西新宿三井ビル

3.3.3 Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧ください。http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page

SPACER4 EVM Use Restrictions and Warnings:

4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOTLIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS.

4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handlingor using the EVM, including without limitation any warning or restriction notices. The notices contain important safety informationrelated to, for example, temperatures and voltages.

4.3 Safety-Related Warnings and Restrictions:4.3.1 User shall operate the EVM within TI’s recommended specifications and environmental considerations stated in the user

guide, other available documentation provided by TI, and any other applicable requirements and employ reasonable andcustomary safeguards. Exceeding the specified performance ratings and specifications (including but not limited to inputand output voltage, current, power, and environmental ranges) for the EVM may cause personal injury or death, orproperty damage. If there are questions concerning performance ratings and specifications, User should contact a TIfield representative prior to connecting interface electronics including input power and intended loads. Any loads appliedoutside of the specified output range may also result in unintended and/or inaccurate operation and/or possiblepermanent damage to the EVM and/or interface electronics. Please consult the EVM user guide prior to connecting anyload to the EVM output. If there is uncertainty as to the load specification, please contact a TI field representative.During normal operation, even with the inputs and outputs kept within the specified allowable ranges, some circuitcomponents may have elevated case temperatures. These components include but are not limited to linear regulators,switching transistors, pass transistors, current sense resistors, and heat sinks, which can be identified using theinformation in the associated documentation. When working with the EVM, please be aware that the EVM may becomevery warm.

4.3.2 EVMs are intended solely for use by technically qualified, professional electronics experts who are familiar with thedangers and application risks associated with handling electrical mechanical components, systems, and subsystems.User assumes all responsibility and liability for proper and safe handling and use of the EVM by User or its employees,affiliates, contractors or designees. User assumes all responsibility and liability to ensure that any interfaces (electronicand/or mechanical) between the EVM and any human body are designed with suitable isolation and means to safelylimit accessible leakage currents to minimize the risk of electrical shock hazard. User assumes all responsibility andliability for any improper or unsafe handling or use of the EVM by User or its employees, affiliates, contractors ordesignees.

4.4 User assumes all responsibility and liability to determine whether the EVM is subject to any applicable international, federal,state, or local laws and regulations related to User’s handling and use of the EVM and, if applicable, User assumes allresponsibility and liability for compliance in all respects with such laws and regulations. User assumes all responsibility andliability for proper disposal and recycling of the EVM consistent with all applicable international, federal, state, and localrequirements.

5. Accuracy of Information: To the extent TI provides information on the availability and function of EVMs, TI attempts to be as accurateas possible. However, TI does not warrant the accuracy of EVM descriptions, EVM availability or other information on its websites asaccurate, complete, reliable, current, or error-free.

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SPACER6. Disclaimers:

6.1 EXCEPT AS SET FORTH ABOVE, EVMS AND ANY WRITTEN DESIGN MATERIALS PROVIDED WITH THE EVM (AND THEDESIGN OF THE EVM ITSELF) ARE PROVIDED "AS IS" AND "WITH ALL FAULTS." TI DISCLAIMS ALL OTHERWARRANTIES, EXPRESS OR IMPLIED, REGARDING SUCH ITEMS, INCLUDING BUT NOT LIMITED TO ANY IMPLIEDWARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF ANYTHIRD PARTY PATENTS, COPYRIGHTS, TRADE SECRETS OR OTHER INTELLECTUAL PROPERTY RIGHTS.

6.2 EXCEPT FOR THE LIMITED RIGHT TO USE THE EVM SET FORTH HEREIN, NOTHING IN THESE TERMS ANDCONDITIONS SHALL BE CONSTRUED AS GRANTING OR CONFERRING ANY RIGHTS BY LICENSE, PATENT, OR ANYOTHER INDUSTRIAL OR INTELLECTUAL PROPERTY RIGHT OF TI, ITS SUPPLIERS/LICENSORS OR ANY OTHER THIRDPARTY, TO USE THE EVM IN ANY FINISHED END-USER OR READY-TO-USE FINAL PRODUCT, OR FOR ANYINVENTION, DISCOVERY OR IMPROVEMENT MADE, CONCEIVED OR ACQUIRED PRIOR TO OR AFTER DELIVERY OFTHE EVM.

7. USER'S INDEMNITY OBLIGATIONS AND REPRESENTATIONS. USER WILL DEFEND, INDEMNIFY AND HOLD TI, ITSLICENSORS AND THEIR REPRESENTATIVES HARMLESS FROM AND AGAINST ANY AND ALL CLAIMS, DAMAGES, LOSSES,EXPENSES, COSTS AND LIABILITIES (COLLECTIVELY, "CLAIMS") ARISING OUT OF OR IN CONNECTION WITH ANYHANDLING OR USE OF THE EVM THAT IS NOT IN ACCORDANCE WITH THESE TERMS AND CONDITIONS. THIS OBLIGATIONSHALL APPLY WHETHER CLAIMS ARISE UNDER STATUTE, REGULATION, OR THE LAW OF TORT, CONTRACT OR ANYOTHER LEGAL THEORY, AND EVEN IF THE EVM FAILS TO PERFORM AS DESCRIBED OR EXPECTED.

8. Limitations on Damages and Liability:8.1 General Limitations. IN NO EVENT SHALL TI BE LIABLE FOR ANY SPECIAL, COLLATERAL, INDIRECT, PUNITIVE,

INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES IN CONNECTION WITH OR ARISING OUT OF THESETERMS ANDCONDITIONS OR THE USE OF THE EVMS PROVIDED HEREUNDER, REGARDLESS OF WHETHER TI HASBEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. EXCLUDED DAMAGES INCLUDE, BUT ARE NOT LIMITEDTO, COST OF REMOVAL OR REINSTALLATION, ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODSOR SERVICES, RETESTING, OUTSIDE COMPUTER TIME, LABOR COSTS, LOSS OF GOODWILL, LOSS OF PROFITS,LOSS OF SAVINGS, LOSS OF USE, LOSS OF DATA, OR BUSINESS INTERRUPTION. NO CLAIM, SUIT OR ACTION SHALLBE BROUGHT AGAINST TI MORE THAN ONE YEAR AFTER THE RELATED CAUSE OF ACTION HAS OCCURRED.

8.2 Specific Limitations. IN NO EVENT SHALL TI'S AGGREGATE LIABILITY FROM ANY WARRANTY OR OTHER OBLIGATIONARISING OUT OF OR IN CONNECTION WITH THESE TERMS AND CONDITIONS, OR ANY USE OF ANY TI EVMPROVIDED HEREUNDER, EXCEED THE TOTAL AMOUNT PAID TO TI FOR THE PARTICULAR UNITS SOLD UNDERTHESE TERMS AND CONDITIONS WITH RESPECT TO WHICH LOSSES OR DAMAGES ARE CLAIMED. THE EXISTENCEOF MORE THAN ONE CLAIM AGAINST THE PARTICULAR UNITS SOLD TO USER UNDER THESE TERMS ANDCONDITIONS SHALL NOT ENLARGE OR EXTEND THIS LIMIT.

9. Return Policy. Except as otherwise provided, TI does not offer any refunds, returns, or exchanges. Furthermore, no return of EVM(s)will be accepted if the package has been opened and no return of the EVM(s) will be accepted if they are damaged or otherwise not ina resalable condition. If User feels it has been incorrectly charged for the EVM(s) it ordered or that delivery violates the applicableorder, User should contact TI. All refunds will be made in full within thirty (30) working days from the return of the components(s),excluding any postage or packaging costs.

10. Governing Law: These terms and conditions shall be governed by and interpreted in accordance with the laws of the State of Texas,without reference to conflict-of-laws principles. User agrees that non-exclusive jurisdiction for any dispute arising out of or relating tothese terms and conditions lies within courts located in the State of Texas and consents to venue in Dallas County, Texas.Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive reliefin any United States or foreign court.

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265Copyright © 2016, Texas Instruments Incorporated

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IMPORTANT NOTICE

Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and otherchanges to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latestissue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current andcomplete. All semiconductor products (also referred to herein as “components”) are sold subject to TI’s terms and conditions of salesupplied at the time of order acknowledgment.TI warrants performance of its components to the specifications applicable at the time of sale, in accordance with the warranty in TI’s termsand conditions of sale of semiconductor products. Testing and other quality control techniques are used to the extent TI deems necessaryto support this warranty. Except where mandated by applicable law, testing of all parameters of each component is not necessarilyperformed.TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products andapplications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provideadequate design and operating safeguards.TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, orother intellectual property right relating to any combination, machine, or process in which TI components or services are used. Informationpublished by TI regarding third-party products or services does not constitute a license to use such products or services or a warranty orendorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of thethird party, or a license from TI under the patents or other intellectual property of TI.Reproduction of significant portions of TI information in TI data books or data sheets is permissible only if reproduction is without alterationand is accompanied by all associated warranties, conditions, limitations, and notices. TI is not responsible or liable for such altereddocumentation. Information of third parties may be subject to additional restrictions.Resale of TI components or services with statements different from or beyond the parameters stated by TI for that component or servicevoids all express and any implied warranties for the associated TI component or service and is an unfair and deceptive business practice.TI is not responsible or liable for any such statements.Buyer acknowledges and agrees that it is solely responsible for compliance with all legal, regulatory and safety-related requirementsconcerning its products, and any use of TI components in its applications, notwithstanding any applications-related information or supportthat may be provided by TI. Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards whichanticipate dangerous consequences of failures, monitor failures and their consequences, lessen the likelihood of failures that might causeharm and take appropriate remedial actions. Buyer will fully indemnify TI and its representatives against any damages arising out of the useof any TI components in safety-critical applications.In some cases, TI components may be promoted specifically to facilitate safety-related applications. With such components, TI’s goal is tohelp enable customers to design and create their own end-product solutions that meet applicable functional safety standards andrequirements. Nonetheless, such components are subject to these terms.No TI components are authorized for use in FDA Class III (or similar life-critical medical equipment) unless authorized officers of the partieshave executed a special agreement specifically governing such use.Only those TI components which TI has specifically designated as military grade or “enhanced plastic” are designed and intended for use inmilitary/aerospace applications or environments. Buyer acknowledges and agrees that any military or aerospace use of TI componentswhich have not been so designated is solely at the Buyer's risk, and that Buyer is solely responsible for compliance with all legal andregulatory requirements in connection with such use.TI has specifically designated certain components as meeting ISO/TS16949 requirements, mainly for automotive use. In any case of use ofnon-designated products, TI will not be responsible for any failure to meet ISO/TS16949.

Products ApplicationsAudio www.ti.com/audio Automotive and Transportation www.ti.com/automotiveAmplifiers amplifier.ti.com Communications and Telecom www.ti.com/communicationsData Converters dataconverter.ti.com Computers and Peripherals www.ti.com/computersDLP® Products www.dlp.com Consumer Electronics www.ti.com/consumer-appsDSP dsp.ti.com Energy and Lighting www.ti.com/energyClocks and Timers www.ti.com/clocks Industrial www.ti.com/industrialInterface interface.ti.com Medical www.ti.com/medicalLogic logic.ti.com Security www.ti.com/securityPower Mgmt power.ti.com Space, Avionics and Defense www.ti.com/space-avionics-defenseMicrocontrollers microcontroller.ti.com Video and Imaging www.ti.com/videoRFID www.ti-rfid.comOMAP Applications Processors www.ti.com/omap TI E2E Community e2e.ti.comWireless Connectivity www.ti.com/wirelessconnectivity

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Documents

ADS131A04 Evaluation Module User's Guide (Rev. A) Supported Functionality..... 3 2 Quick Start..... ..... 4 2.1 Default Jumper and Switch Configuration ... ADS131A04 Evaluation Module