26
Evaluation Board For AD7682/89/99/7949 PulSAR ® ADCs Preliminary Technical Data EVAL-AD76MUXEDZ Rev. PrD Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2009 Analog Devices, Inc. All rights reserved. FEATURES Converter and Evaluation Development (EVAL-CED1Z) compatibility Versatile analog signal conditioning circuitry On-board reference, clock oscillator and buffers PC software for control and data analysis of time and frequency domain Stand alone operation GENERAL DESCRIPTION The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR analog to digital converter (ADC) family. These low power, successive approximation register (SAR) architect-ture ADCs (see Ordering Guide for product list) offer very high performance with up to 500kSPS throughput rate and 4 – 8 channels. The evaluation board is designed to demonstrate the ADC's performance and to provide an easy to understand interface for a variety of system applications. A full description of the AD7682, AD7689, AD7699, and AD7949 is available in at www.analog.com and should be consulted when utilizing this evaluation board. The evaluation board can be operated as a stand alone or can be used in conjunction with the Analog Devices EVAL-CED1Z (CED) USB based data capture board. Since the ADC’s being evaluated are serial interface only, the EVAL-AD76MUXCBZ contains the necessary logic to perform serial to parallel conversion for this interface using the on board FPGA. On-board components include a high precision band gap reference, (ADR435), reference buffers, 8-signal conditioning circuits with an op amp and an FGPA for digital logic. Also included are separate low drop out regulators for supplying special voltages of 1.2V and 7V which are not available from the EVAL-CED1Z. The board interfaces to the EVAL-CED1Z with a 96-pin DIN connector. J1, J2 SMB connectors are provided for the low noise analog signal source for CH0 and CH1 with the remaining channels (and CH0/1) available on an IDC connector, P1. J3 can be used for providing an external common (COM) or configured for any input channel. Figure 1.Evaluation Board Analog Inputs Signal conditioning Reference Source, COM Select ADC FPGA External COM (or Input) P3, 40-Pin IDC Header 96-Pin EVAL-CED1Z Interface ANALOG, VDD POWER FPGA POWER DIGITAL INTERFACE

Evaluation Board For AD7682/89/99/7949 PulSAR ADCs · The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR

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Page 1: Evaluation Board For AD7682/89/99/7949 PulSAR ADCs · The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR

Evaluation Board For AD7682/89/99/7949PulSAR® ADCs

Preliminary Technical Data EVAL-AD76MUXEDZ

Rev. PrD Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2009 Analog Devices, Inc. All rights reserved.

FEATURES Converter and Evaluation Development (EVAL-CED1Z) compatibility Versatile analog signal conditioning circuitry On-board reference, clock oscillator and buffers PC software for control and data analysis of time and frequency domain Stand alone operation

GENERAL DESCRIPTION The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR analog to digital converter (ADC) family. These low power, successive approximation register (SAR) architect-ture ADCs (see Ordering Guide for product list) offer very high performance with up to 500kSPS throughput rate and 4 – 8 channels. The evaluation board is designed to demonstrate the ADC's performance and to provide an easy to understand interface for a variety of system applications. A full description of the AD7682, AD7689, AD7699, and AD7949 is available in at

www.analog.com and should be consulted when utilizing this evaluation board.

The evaluation board can be operated as a stand alone or can be used in conjunction with the Analog Devices EVAL-CED1Z (CED) USB based data capture board. Since the ADC’s being evaluated are serial interface only, the EVAL-AD76MUXCBZ contains the necessary logic to perform serial to parallel conversion for this interface using the on board FPGA.

On-board components include a high precision band gap reference, (ADR435), reference buffers, 8-signal conditioning circuits with an op amp and an FGPA for digital logic. Also included are separate low drop out regulators for supplying special voltages of 1.2V and 7V which are not available from the EVAL-CED1Z.

The board interfaces to the EVAL-CED1Z with a 96-pin DIN connector. J1, J2 SMB connectors are provided for the low noise analog signal source for CH0 and CH1 with the remaining channels (and CH0/1) available on an IDC connector, P1. J3 can be used for providing an external common (COM) or configured for any input channel.

Figure 1.Evaluation Board

Analog Inputs

Signal conditioning Reference Source, COM Select

ADC

FPGA

External COM (or Input)

P3, 40-Pin IDC Header

96-Pin EVAL-CED1Z Interface

ANALOG, VDD POWER

FPGA POWER

DIGITAL INTERFACE

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EVAL-AD76MUXEDZ Preliminary Technical Data

Rev. PrD | Page 2 of 26

TABLE OF CONTENTS Features .............................................................................................. 1 Revision History ............................................................................... 2

Overview........................................................................................ 3 Conversion Control...................................................................... 3 Analog Inputs................................................................................ 3 Serial Interface .............................................................................. 3 Reference ....................................................................................... 3 Power Supplies and Grounding .................................................. 3 Schematics/PCB Layout............................................................... 4 Hardware Setup ............................................................................ 4

Software Installation .....................................................................4 Running the Evaluation Software ..............................................5 Setup Screen...................................................................................5 Configuring the ADC ...................................................................5 DC Testing - Histogram ...............................................................5 AC Testing ......................................................................................5 Software Operation .......................................................................8 ADC Configuration ......................................................................9 Evaluation Board Schematics and Artwork............................ 15 Ordering Guide .......................................................................... 26

LIST OF FIGURES Figure 1.Evaluation Board............................................................... 1 Figure 2. Setup Screen ...................................................................... 8 Figure 3. Default CFG ..................................................................... 9 Figure 4. CGF Enable/Disable Selection....................................... 9 Figure 5. Input Configuration/Channel Selection........................ 9 Figure 6.BW Select............................................................................ 9 Figure 7. Reference Selection .......................................................... 9 Figure 8. Context Help, User Controls ......................................... 10 Figure 9. Histogram Screen ........................................................... 11 Figure 10. Summary ....................................................................... 12 Figure 11. FFT Spectrum ............................................................... 13 Figure 12 .Oscilloscope .................................................................. 14 Figure 13. Schematic, ADC + Block Diagram............................. 15

Figure 14. Schematic, Supplies ...................................................... 16 Figure 15. Schematic, Reference, Buffer, VCM, VBIAS .................... 17 Figure 16. Schematic, AnalogCH0-CH3...................................... 18 Figure 17. Schematic, AnalogCH4-CH7...................................... 19 Figure 18. Schematic, FPGA.......................................................... 20 Figure 19. Schematic, 96-Pin Interface ........................................ 21 Figure 20. Top Side Silk-Screen .................................................... 22 Figure 21. Inner Layer 1................................................................. 22 Figure 22. Ground Plane................................................................ 23 Figure 23. Inner Layer 2................................................................. 23 Figure 24.Inner Layer 3.................................................................. 24 Figure 25. Bottom Layer ................................................................ 24 Figure 26. Bottom Layer ................................................................ 25

LIST OF TABLES Table 1. Jumper Description............................................................ 6 Table 2.Test Points ............................................................................ 7

Table 3. Bill of Materials for the Connectors .................................7

REVISION HISTORY

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Preliminary Technical Data EVAL-AD76MUXEDZ

Rev. PrD | Page 3 of 26

OVERVIEW Figure 1 shows the EVAL-AD76MUXCBZ evaluation board. When used in conjunction with the EVAL-CED1Z, the FPGA, U6, provides the necessary control signals for conversion and buffers the ADC serial output data into 16-bit wide transfers. The evaluation board is a flexible design that enables the user to choose among many different board configurations, analog signal conditioning, reference, and different interfaces for conversion results.

In stand alone operation, the FPGA can be used to buffer the 4-wire interface via. P3, or directly to the 4 digital interface test points SDO, SCK, DIN and CNV. For stand alone mode, supply power to the evaluation board as detailed in the Power Supplies and Grounding section below.

For FPGA buffered serial interface, supplying power is all that is necessary. For direct serial connection to the ADC, place a jumper across P3-39 and P3-40 as P3-40 pulled low places the FPGA into high impedance.

CONVERSION CONTROL Conversion start (CNV) controls the sample rate of the ADC and is the only input needed for conversion; all SAR timing is internally generated on the ADC. CNV is generated by the gate array and the frequency is selected with the software.

While the ADC is converting, activity is indicated by the green LED, CR1. Operating the software in Burst mode as opposed to Continuous mode, will only light the LED when conversion is taking place.

For stand alone operation, connect a low jitter source to either P3-8 or CNV.

ANALOG INPUTS SMB connectors, J1 and J2, are provided for the ADC input channels IN0 and IN1 (IN0 only on AD7682). These inputs are also on the IDC connector P1-2 and P1-4. The remaining inputs are also on P1-6 through P1-16 (even pins only). J3 can be configured for providing a common point (COM) for all input signals or for any analog input IN0-IN7. For using J3 as an external common point, remove the solder pad (bottom of PCB) from “COMS to COM” and solder “EXT_COM to COM” as shown below.

To configure J3 to drive any of the analog input channels, remove R35 from the left pads (bottom of PCB) and solder it to the rightmost pads.

The analog input amplifier circuitry U13 – U20 (see schematic - Figure 13) allows flexible configuration changes such as positive or negative gain, input range scaling, filtering, addition of a DC component, use of different op-amp and supplies. The analog input amplifiers are set as unity gain buffers at the factory. The supplies are selectable with solder pads VDRV- and VDRV+ and are set for the +7V, -5V range.

Note that when using the unipolar configuration, COMS (P8) is set to (P8, 2-3) and for bipolar input configuration set to (P8, 1-2) with pin 1 being the leftmost pin.

SERIAL INTERFACE The 3-wire serial interface DIN, SCK, and SDO along with CNV are present on the digital interface test points and FPGA buffered versions are on the 40-pin IDC connector, P3-2, -4, -6, -8. When connected to the EVAL-CED1Z and stand alone (without P3-39 to P3-40 jumper), signals are present at both locations. With P3-39 to P3-40 connected, these signals are only present at the test points SDO, SCK DIN and CNV.

REFERENCE All of the ADCs for this evaluation board can use a precision trimmed on-chip band gap reference, an on-board precision ADR435 band gap reference, or an external reference connected to the EXTREF test point (TP17). The on-chip reference is enabled or disabled with the software. The on-chip reference can be set for 2.5V or 4.096V outputs and also includes an internal buffer, useful for external reference applications. When using the on-chip reference, remove the jumper on TP7 since this will overdrive the on-chip reference with the external one. The default configuration is for on-board ADR435 reference with a buffered output (P5 2-3), (P6 1-2) and (P7 1-2).

For using an external reference connect to the EXTREF test point (TP17), select a buffer or not with P6 and select if driving the ADC REF directly or using the ADC’s internal reference buffer. When using the internal reference buffer with gain=1, the maximum output is limited to 4.096V (headroom from 5V supply). The default configuration sets the amplifiers output to be at VREF/2 (mid-scale) from the voltage divider at U1B (VBIAS).

POWER SUPPLIES AND GROUNDING To attain high resolution performance, the board was designed to ensure that all digital ground return paths do not cross the analog ground return paths by connecting the planes together directly under the converter. Power is supplied to the board through P3 when using with the EVAL-CED1Z. For stand alone

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EVAL-AD76MUXEDZ Preliminary Technical Data

Rev. PrD | Page 4 of 26

operation, the evaluation board requires three diffeetn supplies and system ground. Connect a supply (7V to 12V) to the analog supplies tests points +12V and +5VA. Connect -5V to the -5VA test point. Connect a supply (+3.3V to +5.5V max) to the FPGA power test point, VDIG.

Connect the power supply GNDs to the GND test point at the power supplies section of test points making certain the both analog and digital GNDs are at the same potential.

SCHEMATICS/PCB LAYOUT The EVAL-AD76MUXCBZ is a 6-layer board carefully laid out and tested to demonstrate the specific high accuracy performance of the ADC. Figure 13 through Figure 19 shows the schematics of the evaluation board. The silkscreens for the PCB are given in Figure 20 and Figure 22.

HARDWARE SETUP System Requirements • EVAL-AD7682CBZ, EVAL-AD7689CBZ, EVAL-

AD7699CBZ, EVAL-AD7949CBZ • Evaluation Converter Evaluation and Development board,

EVAL-CED1Z • Enclosed World compatible 7V DC supply • Enlcosed USB to mini USB cable • DC source (low noise for checking different input ranges) • AC source (low distortion) • Band pass filter suitable for 16 or 18 bit testing (value based

on signal frequency) • PC operating Windows XP.

Proceed to the Software Installation section to install the software. Note: The EVAL-CED1Z board must not be connected to the PC’s USB port until the Software is installed. The 7V DC supply can be connected however to check the board has power (green LED lit).

SOFTWARE INSTALLATION It is recommended to close all Windows’ applications prior to installing the software.

System Requirements • PC operating Windows XP. • USB 2.0 (for CED board) • Administrator privileges

CD-ROM –Navigate to Software\CED Version x.x, double click on setup.exe and follow the instructions on the screen. If another version of Analog Devices PulSAR Evaluation Software is present, it may be necessary to remove this. To remove, click on the Windows “Start” button, select “Control Panel” and “Add or Remove Programs”. When the list populates, navigate to Analog Devices High Resolution sampling ADC’s Evaluation Software or PulSAR Evaluation Software and select Remove.

Website Download

The software versions are also available from the Analog Devices PulSAR Analog to Digital Converter Evaluation Kit

page. After downloading the software, it is recommended to use the WinZip “Extract” function to extract all of the necessary components as opposed to just clicking on setup.exe in the zipped file. After extracting, click on seteup.exe in the folder created during the extraction and follow the instructions on the screen. If another version exists, it may be necessary to remove as detailed in the above CD-ROM section.

USB Drivers The software will also install the necessary USB drivers. After installing the software, power up the CED board and connect to the PC USB 2.0 port. The Windows “Found New Hardware” Wizard will display. Click on Next to install the drivers automatically.

When installed properly, Windows displays the following.

On some PCs, the Found New hardware Wizard may show up again and if so follow the same procedure to install it properly.

The “Device Manager” can be used to verify that the driver was installed successfully.

Page 5: Evaluation Board For AD7682/89/99/7949 PulSAR ADCs · The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR

Preliminary Technical Data EVAL-AD76MUXEDZ

Rev. PrD | Page 5 of 26

Troubleshooting the Install

If the driver was not installed successfully the device manager will display a question mark for “Other devices” as Windows does not recognize the CED1Z board.

The “USB Device” can be opened to view it’s uninstalled properties.

This is usually the case if the software and drivers were installed by a user without administrator privileges. If so, log on as an administrator with full privileges and reinstall the software.

RUNNING THE EVALUATION SOFTWARE The evaluation board includes software for analyzing the AD7682, AD7689, AD7699 and AD7949. The EVAL-CED1Z is required when using the software. The software is used to perform the following tests:

• Histogram for determining code transition noise (DC)

• Fast Fourier transforms (FFT) for signal to noise ratio (SNR), SNR and distortion (SINAD), total harmonic distortion (THD) and spurious free dynamic range (SFDR)

• Decimation (digital filtering)

The software is located at C:\Program Files\Analog Devices\ PulSAR ADC Evaluation Software\Eval PulSAR CED.exe.

A shortcut is also added to the Windows “Start” menu under “Analog Devices PulSAR ADC Evaluation Software”, “Eval PulSAR CED”. To run the software, select the program from either location.

SETUP SCREEN Figure 2 is the setup screen where ADC device selection, test type, input voltage range, sample rate and number of samples are selected.

CONFIGURING THE ADC These ADCs need to be configured through a dedicated SPI compatible serial port. The included SW configures the part to a default configuration. Each of the different configurable parameters are shown in the ADC Configuration section, detailed in Figure 3 to Figure 7.

DC TESTING - HISTOGRAM Figure 9 is the histogram screen, which tests the code distribution for DC input and computes the mean and standard deviation or transition noise. To perform a histogram test, select “Histogram” from the test selection window and click on the “Start” radio button. Note: a histogram test can be performed without an external source since the evaluation board has a buffered VREF/2 source at the ADC input. To test other DC values, apply a source to the J1/J2/P1-x inputs. It is advised to filter the signal to make the DC source noise compatible with that of the ADC.

AC TESTING Figure 11 is the FFT screen, which performs an FFT on the captured data and computes the SNR, SINAD, THD and SFDR. Figure 12 is the time domain representation of the output. To perform an AC test, apply a sinusoidal signal to the evaluation board at the SMB inputs J1 for CH0 and J2 for CH1. Low distortion, better than 100dB, is required to allow true evaluation of the part. One possibility is to filter the input signal from the AC source. There is no suggested bandpass filter but

Page 6: Evaluation Board For AD7682/89/99/7949 PulSAR ADCs · The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR

EVAL-AD76MUXEDZ Preliminary Technical Data

Rev. PrD | Page 6 of 26

consideration should be taken in the choice. Furthermore, if using a low frequency bandpass filter when the full-scale input range is more than a few Vpp, it is recommended to use the on

board amplifiers to amplify the signal, thus preventing the filter from distorting the input signal.

Table 1. Jumper Description Jumper Name Default

Position Function

P5 - REFS Reference source selection. REFS to middle pin: uses ADR435 (A1) 5V, 4.096V or 2.5V output. VDD to middle pin: VDD supply is used as a reference. Open: optional source can be connected to TP17/VREF.

P6 - BUF Reference buffer selection. BUF to middle pin: buffer selection from P5 with the AD8032-A (U2). NOBUFF to middle pin: use P5 direct (no buffer).

P7 REF/REFIN REF ADC REF/REFIN input selection. REF to middle pin: external source drives ADC REF pin. REFIN to middle pin: external source drives REFIN, reference buffer input pin Open: When using the on-chip reference.

P8 COMS VCM Common channel select. VCM to middle pin: for bipolar mode, selects VREF/2. GND to middle pin: for unipolar operation, selects GND.

JP9 5V 5V External reference selection of 5V. JP10 4.096V Open External reference selection of 4.096V. JP11 2.5V Open External reference selection of 2.5V. SB0-7 BUF Select BUF Use on-board analog amplifiers (U13 – U20)

BUF: use amplifier NO BUF: bypass amplifier

- VDRV- -5V Amplifiers (U13-U20) (-) supply. - VDRV+ 7V Amplifiers (U13-U20) (+) supply. - VCCREF 12V ADR435(A1) (+) supply. - VDDR 5V ADC (U7) VDD supply. Must always be the same as VDD. - VDD 5V ADC (U7) VDD supply. - VIO 3.3V ADC (U7) VIO interface supply.

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Preliminary Technical Data EVAL-AD76MUXEDZ

Rev. PrD | Page 7 of 26

Table 2.Test Points Test Point

Available Signal

Type Description

TP8 GND P FPGA power supply GND. TP9 -5VA1 P Amplifier negative supply. TP10 +5VA1 P 5V analog supply. TP11 +12VA1 P 12V analog supply. TP12 GND P Analog supply GND. TP13 VDD P ADC (U7) VDD supply. TP14 VDDR P ADC (U7) VDD supply. Must always be = AVDD above. TP15 VIO P ADC (U7) VIO interface supply. TP17 VREF AI External reference input. TP18 REF AI/O ADC on-chip reference output or external reference input. TP19 REFIN AI/O ADC on-chip band-gap output or external reference input when using on-chip reference

buffer. TP20 IN0 AI Analog input for ADC IN0 on both 4 and 8-channel ADCs. TP21 IN1 AI Analog input for channel 1 on 8-channel ADCs only. TP22 COM AI Sets the level on ADC COM; GND or VREF/2. TP24 SDO DO Serial data output from ADC. TP25 SCK DI Serial clock data input to ADC. TP26 DIN DI Serial data input for part configuration. TP27 CNV DI Conversion input to ADC TP71 GND P Analog supply GND. TP76 VDIG1 P FPGA power supply.

Table 3. Bill of Materials for the Connectors Ref Des Connector Type Manf. Part No. J1, J2, J3 RT Angle SMB Male Pasternack PE4177 P1 0.100 X 0.100 straight IDC header 2X10 3M 2540-6002UB P2 0.100 X 0.100 straight IDC header 2X20 3M 2540-6002UB P4 32X3 RT PC MOUNT CONNECTOR ERNI 533402 1 Supplied by EVAL-CED1Z when connected.

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EVAL-AD76MUXEDZ Preliminary Technical Data

Rev. PrD | Page 8 of 26

SOFTWARE OPERATION

Figure 2. Setup Screen

The following details the operation of the software.

1. The arrow is used to start the software. When running

is displayed.

2. The part to be evaluated is selected here.

3. The controls are used to set:

Sample Frequency – units can be used such as 500k (case sensitive) for 500,000 Hz.

Capture Mode – This selects between continuous (Cont.) or burst conversion modes. In continuous mode, the ADC is continuously converting. In Burst mode, the ADC is not converting (sample clock held in inactive state) and the conversions begin once the “Single Capture” or “Continuous Capture” buttons have been selected.

Interface mode – This selects the digital interface to the on-board FPGA.

Input Range – this is used to adjust the LSB size in the data field of the plot window.

4. These controls are used for saving, printing, help, etc. and are also accessed in the File menu.

Save (F5): type – LabView config, allows the current configuration to be saved to a filename.dat file. Useful when changing many of the default controls. To load the saved configuration, use the Load Previous Configuration. Note the location of the .dat file. It is recommended to place into the Support Files directory in the directory where the software was installed.

Type – Html, saves the current screen shot to an Html file.

Type – Spreadsheet, saves the current data displayed in the chart in a tab delimited spreadsheet. Raw ADC Data is time domain in V or Code, FFT or Decimated is in dB.

5. Stop (F10) is used to stops the software. The can also be used to stop the software. RESET is used to reset the EVAL-CED1Z.

1

2

3

4

5

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Preliminary Technical Data EVAL-AD76MUXEDZ

Rev. PrD | Page 9 of 26

ADC CONFIGURATION The ADC needs to be configured for input configuration, reference, channel to be converted, temperature sensor, and on-chip low pass (LP) filter (optional) for full bandwidth (BW) or ¼ BW. These next figures show the pull down configurations available. Note the default value when the program is started is indicated by the √; or CFG writing enabled, unipolar INn to GND, CH0, full BW, and external reference. Note that after updating the CFG, the first conversion (when using burst mode) will be of the last configuration since the ADC has a 1-depp delay for the CFG.

Figure 3 shows the default values.

Figure 3. Default CFG

Figure 4 details CFG Write Enabled/Disabled. When enabled, the MSB of the CFG is set high. When disabled the MSB is set low thus the remaining 13 bits are ignored.

Figure 4. CGF Enable/Disable Selection

Figure 5 details the inputs (IN0-IN7) configuration and channel selection. Refer to the datasheet for more information about the input configure-ations. Note that in the bipolar mode, the input, IN+ and COM (or IN-) must be centered around VREF/2.

Figure 5. Input Configuration/Channel Selection

Figure 6 details the bandwidth selection of the 1-pole low pass filter, which can reduce the noise from the amplifier circuit, if desired. Note that the throughout of the converter must also reduce to ¼ of the maximum when setting to ¼ BW.

Figure 6.BW Select

Figure 7 details the reference selection. Note that the TEMP sensor can be used with an external reference. The Temp sensor can be used to monitor the temperature of the ADC and the output is straight binary and referenced to the ADC GND. The displayed results should be in Volts format as opposed to Hex.

Figure 7. Reference Selection

Page 10: Evaluation Board For AD7682/89/99/7949 PulSAR ADCs · The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR

EVAL-AD76MUXEDZ Preliminary Technical Data

Rev. PrD | Page 10 of 26

Figure 8. Context Help, User Controls

1. To use the on-screen help. Select Help, Show Context Help or click the Help (F1). An example of the Context Help is shown above for the Sample Frequency. Placing the curser on most screen items displays useful help for the particular control or displayed unit.

2. These controls are used for axes and zooming panning.

Locks the graph axis to automatically fit the data.

Uses last axis set by user. , rescale the axes to the automatic values.

, are used to set axes properties such as format, precision, color, etc.

Displays the cursor.

Is used For zooming in and out.

Is used for panning.

Is used to set various graph properties such as graph type, colors, lines, etc.

1

2

Page 11: Evaluation Board For AD7682/89/99/7949 PulSAR ADCs · The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR

Preliminary Technical Data EVAL-AD76MUXEDZ

Rev. PrD | Page 11 of 26

Figure 9. Histogram Screen

1. These radio buttons are used to perform a Single Capture or Continuous Capture of data set in the # of Samples field. The results are displayed in the chart. Note that the results can be displayed as:

A

Or an (time domain)

2., 3.These display the statistics for the X and Y-axes, respectively.

1

2 3

Page 12: Evaluation Board For AD7682/89/99/7949 PulSAR ADCs · The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR

EVAL-AD76MUXEDZ Preliminary Technical Data

Rev. PrD | Page 12 of 26

Figure 10. Summary

The charts can be displayed together when the tab is selected.

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Preliminary Technical Data EVAL-AD76MUXEDZ

Rev. PrD | Page 13 of 26

Figure 11. FFT Spectrum

1. Displays the FFT when the Spectrum chart is selected

2., 3. Display the data for the X and Y-axes, respectively.

3 21

1

Page 14: Evaluation Board For AD7682/89/99/7949 PulSAR ADCs · The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR

EVAL-AD76MUXEDZ Preliminary Technical Data

Rev. PrD | Page 14 of 26

Figure 12 .Oscilloscope

1. Time domain data can be viewed with the oscilloscope also.

1

Page 15: Evaluation Board For AD7682/89/99/7949 PulSAR ADCs · The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR

Preliminary Technical Data EVAL-AD76MUXEDZ

Rev. PrD | Page 15 of 26

EVALUATION BOARD SCHEMATICS AND ARTWORK

BOTTOM

BOTTOM

TOP

BOTTOM

BOTTOM

BOTTOM

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GND

GND

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SET

CONT

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>

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>

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OG

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IN0/

IN0

IN1

IN2/

IN1

IN3

IN4

IN5/

IN2

IN6

IN7/

IN3

VDD

VDRV

+

REF

COM

VCCR

EF

VDRV

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A

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A2

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EN_5

V_N

EN_7

V_N

VCCR

EF

VDD

VIO

VDDR

VDRV

-

VDRV

+-5

VAVD

IG

Figure 13. Schematic, ADC + Block Diagram

Page 16: Evaluation Board For AD7682/89/99/7949 PulSAR ADCs · The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR

EVAL-AD76MUXEDZ Preliminary Technical Data

Rev. PrD | Page 16 of 26

VIO

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1TP38

1TP40

1TP42

1TP41

1TP43

1TP46

1TP45

1TP44

1TP47

1TP36

1TP35

1TP37

1TP33

1TP34

1TP32

1TP31

1TP30

1TP29

1TP28

1TP

76

1TP

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111

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2.2UF

0.1UF

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78.7K

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10K

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GND

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GND

GND

OUT

OUT

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GND

OUT

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EN INOU

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Figure 14. Schematic, Supplies

Page 17: Evaluation Board For AD7682/89/99/7949 PulSAR ADCs · The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR

Preliminary Technical Data EVAL-AD76MUXEDZ

Rev. PrD | Page 17 of 26

4.096V

REFS

VREF

VDD

VREF

2.5V

REFRE

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5V

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ING

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CRE

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C38

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C43

C41

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19

1TP

17

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R32

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R28

R26

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R27

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581

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2 1R25

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9

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V-V+

GND

GND

GND

OUT

OUT

GND

TRIM

VIN

GND

NC1

TPNC

2TP

1

VOUT

GND

GND

V-V+

GND

GND

GND

GND

GND

Figure 15. Schematic, Reference, Buffer, VCM, VBIAS

Page 18: Evaluation Board For AD7682/89/99/7949 PulSAR ADCs · The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR

EVAL-AD76MUXEDZ Preliminary Technical Data

Rev. PrD | Page 18 of 26

IN0/

IN0

IN1

ADC

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1TP51

1TP49

1TP50

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1TP59

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1TP56

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TP54

R157R156

98765432 161514131211101P1

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1TP

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1TP

20

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21

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4

21C6

1

21

R60

2 1R65

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3

C69

C68

C67

C72

C71

C70

C57

C56

C55

C52

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54

32

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54

32

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R42

21

R41

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R47

47

8

63

5

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47

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21

R75

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21

R72

21

R74

21

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21

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IN2

CH7/

CH3

CH5/

CH2

CH2/

CH1

CH0/

CH0

IN2/

IN1

IN3

CH0/

CH0

CH2/

CH1

CH3

IN7/

IN3

IN6

IN4

IN3

IN2/

IN1

IN1

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IN0

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CH4

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CH1

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TBD0

805

TBD0

805

TBD0

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TBD0

805

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0

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22

RED

RED

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ADA4

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ADA4

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RED RED

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22

2700

PF

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RED

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2700

PF

10K

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PF

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2700

PF

49.

949

.9

49.

9

0

0

0

0

000 0

0

VBIA

S

VDRV

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+

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VDRV

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VDRV

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VDRV

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ADA4

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VDRV

+

VDRV

+

590

590

590

0.1U

F

0.1U

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0.1U

F

0.1U

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0.1U

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0.1U

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0

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PD_N

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GND

GND

GND

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GND

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GND

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GND GNDGND

GNDGNDGND

OUT

OUT

OUT

OUT

OUT

OUT

OUT

OUT

OUT

GND

GND

GND

Figure 16. Schematic, AnalogCH0-CH3

Page 19: Evaluation Board For AD7682/89/99/7949 PulSAR ADCs · The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR

Preliminary Technical Data EVAL-AD76MUXEDZ

Rev. PrD | Page 19 of 26

ADC

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U19

21R

117

21R

1142

1C96

21R

119

21C1

04

321P8

0TB

D080

5

0.1U

F

TBD0805

CH6

IN6

IN7/

IN3

CH5/

CH2

IN5/

IN2

CH7/

CH3

IN4

CH4

TBD0

805

TBD0805

TBD0805TBD0805

TBD0

805

TBD0

805

TBD0

805

TBD0

805

TBD0

805

TBD0

805

TBD0

805

RED

ADA4

841-

1YRZ

0.1U

F

0

ADA4

841-

1YRZ

0.1U

F

22

RED

VBIA

S

0.1U

F

ADA4

841-

1YRZ

RED

RED

RED

VCM

22

VDRV

-

0.1U

F

VDRV

+

0.1U

F

49.

9

VBIA

S

0.1U

F

0.1U

F

0.1U

F

VBIA

S

0.1U

F

0.1U

F

VBIA

S

0.1U

F

49.

949

.9

VDRV

-VD

RV-

VDRV

-

VDRV

+VD

RV+

VDRV

+

0

0

0

0

0

0

0

00

0

590

590

590

590

2700

PF

49.

9

2700

PF

22

RED

22

RED

RED RED

2700

PF

22

RED

REDRED

2700

PF

ADA4

841-

1YRZ

2700

PF

BLU

RED

RED RED

EXT_

COM

COM

TBD0

805

TBD0

805

TBD0

805

TBD0

805

TBD0

805

TBD0

805

TBD0

805

TBD0

805

TBD0

805

TBD0

805

TBD0

805

DESI

GNVI

EW

ORF

ORAN

YOT

HER

PURP

OSEDE

TRIM

ENTAL

TOT

HEIN

TERE

STS

D

THIS

DRAW

INGIS

THE

PROP

ERTY

OFAN

ALOG

DEVI

CESIN

C.

SCAL

ED D DSIZE D

REV

SHEE

T

12

1

A

23

4

35

8

D

7

67

8

ABCCD

5

4

REV

DATE

APPR

OVED

B

6DE

SCRI

PTIO

NRE

VISI

ONS

OF

OLG S E

OWNE

DOR

CONT

ROLL

ED

BYOW

NED

ANAL

OGDE

VICE

S.TH

EEQ

UIPM

ENTSH

OWN

HERE

ONMA

YBE

PROT

ECTED

BYPA

TENTS

INPA

RT,

ORUS

EDIN

FURN

ISHI

NG

INFO

RMAT

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OTH

ERS,

ITIS

NOT

TOBE

REPR

ODUC

ED

ORCO

PIED,

INWH

OLE

OR

EA NA V

C

OFAN

ALOG

DEVI

CES.

PTDE

ENGI

NEER

DRAW

ING

NO.

SCHE

MATI

C

GND

GND

GND

GNDGND

GND

GNDGND

GND

GNDGND

GND

GNDGND

GNDGND

PD_N

N2N1

V-V+

GND

GND

PD_N

N2N1

V-V+

GND

GND

PD_N

N2N1

V-V+

GND

PD_N

N2N1

V-V+

GND

Figure 17. Schematic, AnalogCH4-CH7

Page 20: Evaluation Board For AD7682/89/99/7949 PulSAR ADCs · The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR

EVAL-AD76MUXEDZ Preliminary Technical Data

Rev. PrD | Page 20 of 26

BANK

_2

ADCO

K

MCLK

DUT_

I/O

96_P

IN_I

/O

BANK

_3

BANK

_4

BANK

_1

SUPP

LIES

POWE

R_FP

GA

67

<PTD

E_EN

GINE

ER>

<PRO

DUCT

_1>AD

7689

/82/

99/9

2To

plev

el

Afp

ga

21

P10

21

P11

R125

1TP

73

98765

40

4

39383736353433323130

3

29282726252423222120

2

19181716151413121110

1P3

1TP

27

1TP

26

1TP

25

1TP

24

C128

C130

C131

C127

C129

C109C110

R126

C125

C126

C122

C124

C118

C120

C115

C116

C113

C111

C108

R12

3

R132

R130R128

C10

7R12

4

C11

2C1

14

C11

7C1

19

C121

C12

3

21 R13

6

21 R15

0

21 R13

7

21 R151

21R

1442

1R14

321R

1422

1R14

121R

1402

1R13

921R

138

21 R13

4

21 R12

221 R1

21

21 R13

5

21R

145

AC

CR1

98765432 101P2

8

73

1

4

62

5

U5

43

2

1

Y3

T15T2P10P7M10M7R16K14G14B16E10E7C10C7A15A2R1K3G3B1J7H10H7G9

C8B15

B2A16

A1J8H9K9J9

T16T1

R15R2P9H8P8M9M8

J14J3

H14H3E9E8C9G8

U6

L6

G1

G2

H5F2J5G5

D3E4E3E5D5C2M4L4C1P3P2P1L3N2N1M3M2J4L2F4L1M1K5K4K1K2E2E1F3D4C3

N5L5

H4F1J1J2H1H2U6

E12

F6E6B3A3A4B4A5B5C4C5C6D6G7G6A6B6D8F8F7B7A7A8B9A9D10D11F9F10A10B10G11G10C11A11A12B12B11A13B13C12C13A14B14

E11

U6

F11

M13

K12

J13

G13

G12

H11

J11

F16

F15

G15

G16

J12

H12

K15

K16

L16

L15

L14

M14

M16

M15

N16

N15

P16

P15

P14

N14

N13

M12

N12

D14

E14

D13

C14

E16

D16

D15

H13

D12

F12

L13

J16

J15

H15

H16

U6

M5

L11M11R14T14R13T13L12R12T12P13P12N11K10K11T10R10L10

L9P11R11T11N10

N9R9T9R8T8L8L7R7T7N8T6R5T5R4T4P4P5T3R3

M6

U6

VFPGA

VCCIO1

VIO_FPGA

VIO

VIO_

FPGA

EP2C

5F25

6C7N

VFPG

A

VIO_

FPGA

EP2C

5F25

6C7N

EN_5V_NEN_3.3V_N

BCS_

N

AD<2

>

SCK

EN_7

V_N

18

5

60.

4AD

COK

DSPC

LK

RESE

T

BBUS

Y

10K

10K

BD<7

>

VCCI

O1

.1UF

ASDO

PS_S

TATU

S_N

PS_C

ONFI

G_N

ASDO

EPCS

4SI8

N

ASDO

1000PF

VIO_

FPGA

VIO_

FPGA

VIO_

FPGA

VIO_

FPGA

VIO_

FPGA

VIO_

FPGA

VIO_

FPGA

VIO_

FPGA

VIO_

FPGA

PS_C

ONFI

G_N

PS_S

TATU

S_N

100M

HZ

DATA

10K

DATA

N_CS

O

DIN

1000PF

VPLL

A2

LA_D

<0..

31>

BD<0

..15

>

MCLK

BLU

15K

10K

CNV

BCS_

N

CONT

ROL

BBUS

Y

BBUS

Y

10K

VIO

PS_C

DONE

_N

BD<6

>BD

<5>

BD<3

>

BD<1

4>

AD<3

>AD

<4>

BWR_

N

BD<1

1>

BD<9

>

VFPG

A

MSEL

1MS

EL0

DSPC

LK

ADCO

K

BRD_

N

RESE

T

AD<1

>AD

<0>

BD<1

5>

BD<1

3>BD

<12>

BD<1

0>

BD<8

>

BD<4

>

BD<2

>BD

<1>

BD<0

>PS

_CDO

NE_N

EP2C

5F25

6C7N

EN_7V_N

LA_D

<0..

31>

VPLL

A1

7

SDO

10K

VPLL

A1

10K

PS_D

CLK

0

PS_D

CLK

N_CS

O

N_CS

O

MCLK

PS_D

CLK

CONT

ROL

.1UF

.1UF

.1UF

.1UF

.1UF

.1UF

.1UF

.1UF

.1UF

.1UF

.1UF

.1UF

.1UF

.1UF

.1UF

.1UF

.1UF

.1UF

.1UF

.1UF

0

0 10K

10K

BWR_

N10

K

BRD_

N10

K

10K

10K

10K

BLU

EP2C5F256C7N

EP2C5F256C7N

LA_C

LK2

LA_C

LK1

LA_C

LK2

16

12

25

BWR_

N

CONT

ROL

DSPC

LK

20

21

MSEL

0

3029

28

27

26

25

24

23

22

19

18

1716

15

14

13

12

1110

98

6543

21

0

MSEL

1

VIO

GND

31

3029

28

24

23

22

2120

19

17

15

14

13

1110

987

6

43

21

0

EN_5

V_N

SDO

BCS_

N

BRD_

N

RESE

T

DIN

CNV

3M25

10-5

002UBGN

D

GND

AD<0

..4>

26

27

31

LA_C

LK1

.1UF

VFPG

A

SCK

BLU

BLU

VFPG

A

TBD0

603

EN_3

.3V_

N

10K

15K

VPLL

A2

VIO_

FPGA

DATA

YEL

DESI

GNVI

EW

ORF

ORAN

YOT

HER

PURP

OSEDE

TRIM

ENTAL

TOT

HEIN

TERE

STS

D

THIS

DRAW

INGIS

THE

PROP

ERTY

OFAN

ALOG

DEVI

CESIN

C.

SCAL

ED D DSIZE D

REV

SHEE

T

12

1

A

23

4

35

8

D

7

67

8

ABCCD

5

4

REV

DATE

APPR

OVED

B

6DE

SCRI

PTIO

NRE

VISI

ONS

OF

OLG S E

OWNE

DOR

CONT

ROLL

ED

BYOW

NED

ANAL

OGDE

VICE

S.TH

EEQ

UIPM

ENTSH

OWN

HERE

ONMA

YBE

PROT

ECTED

BYPA

TENTS

INPA

RT,

ORUS

EDIN

FURN

ISHI

NG

INFO

RMAT

IONTO

OT

HERS,

ITIS

NOT

TOBE

REPR

ODUC

ED

ORCO

PIED,

INWH

OLE

OR

EA NA V

C

OFAN

ALOG

DEVI

CES.

PTDE

ENGI

NEER

DRAW

ING

NO.

SCHE

MATI

C

VCCI

O4VC

CIO3

VCCI

O2VC

CIO1

VCCI

NT

GND

VCCD

_PLL

1

TDO

TMS

TDI

TCK

NCON

FIG

NCE

DCLK

DATA

0

CLK3

CLK2

CLK1

CLK0

GND_

PLL1

IOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIO

GND

GNDGNDGNDGNDGNDGND

GND

GND

GND

GND

GND

GND

GND

OUT

OUT

OUT

OUT

OUT

OUT

OUT

OUT

OUT

OUT

OUT

OUT

INININ

GND

GND

GND

GND

IN

GND GN

D

GNDGN

D

VCCA_PLL2

GNDA_PLL2IOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIO

GND

ASDI

DCLK

VCC DA

TAnC

S

GND

GND

GND

GND

V+

GNDOU

TEN

GND

GND

GND

GND VCCD

_PLL

2

MSEL

1MS

EL0

CLK7

CLK6

CLK5

CLK4

GND_

PLL2NS

TATU

SIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOCO

NF_D

ONE

VCCA_PLL1

GNDA_PLL1 IOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIO

Figure 18. Schematic, FPGA

Page 21: Evaluation Board For AD7682/89/99/7949 PulSAR ADCs · The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR

Preliminary Technical Data EVAL-AD76MUXEDZ

Rev. PrD | Page 21 of 26

BD<1

5>

AD<0

>

AD<3

>AD

<4>

VDIG

-5VA

+5VA

-12V

A

+12V

A

DSPC

LK

CONT

ROL

RESE

T

BWR_

N

BRD_

N

BBUS

Y

BCS_

N

AD<1

>

BD<1

3>

BD<1

1>BD

<12>

BD<1

0>BD

<9>

BD<8

>

BD<0

..15

> BD<3

>BD

<2>

431015141311 129876543210

GND

GND

BD<1

4>

BD<0

>BD

<1>

BD<4

>

BD<6

>

10

ERNI

5334

02

VDIG

BWR_

NBC

S_N

AD<4

>

BBUS

YBD

<14>

BD<1

5>

+12V

A-5

VA+5

VA

CONT

ROL

BD<0

>BD

<1>

BD<2

>BD

<3>

BD<4

>VD

IG

BD<7

>

BD<8

>

BD<1

3>

-5VA

+5VA

VDIG

AD<3

>

RESE

TBD

<12>

DSPC

LK

-12V

A-5

VA+5

VA

AD<0

..4>

BD<5

>

GND

BD<5

>BD

<6>

BD<1

1>

BRD_

N

BD<1

0>AD

<2>

AD<0

>BD

<9>

AD<1

>

ERNI

5334

02ER

NI53

3402

BD<7

>

GNDAD

<2>

2

96_p

inA

Topl

evel

AD76

89/8

2/99

/92

<PRO

DUCT

_1>

<PTD

E_EN

GINE

ER>

77

P4C1 C1

0C1

1C1

2C1

3C1

4C1

5C1

6C1

7C1

8C1

9

C2 C20

C21

C22

C23

C24

C25

C26

C27

C28

C29

C3 C30

C31

C32

C4 C5 C6 C7 C8 C9

P4B1 B1

0B1

1B1

2B1

3B1

4B1

5B1

6B1

7B1

8B1

9

B2 B20

B21

B22

B23

B24

B25

B26

B27

B28

B29

B3 B30

B31

B32

B4 B5 B6 B7 B8 B9

P4A1 A1

0A1

1A1

2A1

3A1

4A1

5A1

6A1

7A1

8A1

9

A2 A20

A21

A22

A23

A24

A25

A26

A27

A28

A29

A3 A30

A31

A32

A4 A5 A6 A7 A8 A9

OUT OU

T

OUT

OUT

OUT

OUT

OUT

OUT

OUT

OUT

OUT

OUT

OUT

OUT

OUT

DESI

GNVI

EW

ORF

ORAN

YOT

HER

PURP

OSEDE

TRIM

ENTAL

TOT

HEIN

TERE

STS

D

THIS

DRAW

INGIS

THE

PROP

ERTY

OFAN

ALOG

DEVI

CESIN

C.

SCAL

ED D DSIZE D

REV

SHEE

T

12

1

A

23

4

35

8

D

7

67

8

ABCCD

5

4

REV

DATE

APPR

OVED

B

6DE

SCRI

PTIO

NRE

VISI

ONS

OF

OLG S E

OWNE

DOR

CONT

ROLL

ED

BYOW

NED

ANAL

OGDE

VICE

S.TH

EEQ

UIPM

ENTSH

OWN

HERE

ONMA

YBE

PROT

ECTED

BYPA

TENTS

INPA

RT,

ORUS

EDIN

FURN

ISHI

NG

INFO

RMAT

IONTO

OTH

ERS,

ITIS

NOT

TOBE

REPR

ODUC

ED

ORCO

PIED,

INWH

OLE

OR

EA NA V

C

OFAN

ALOG

DEVI

CES.

PTDE

ENGI

NEER

DRAW

ING

NO.

SCHE

MATI

C

Figure 19. Schematic, 96-Pin Interface

Page 22: Evaluation Board For AD7682/89/99/7949 PulSAR ADCs · The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR

EVAL-AD76MUXEDZ Preliminary Technical Data

Rev. PrD | Page 22 of 26

Figure 20. Top Side Silk-Screen

(Viewed from top side)

Figure 21. Inner Layer 1

(Viewed from top side)

Page 23: Evaluation Board For AD7682/89/99/7949 PulSAR ADCs · The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR

Preliminary Technical Data EVAL-AD76MUXEDZ

Rev. PrD | Page 23 of 26

Figure 22. Ground Plane

(Viewed from top side)

Figure 23. Inner Layer 2

(Viewed from top side)

Page 24: Evaluation Board For AD7682/89/99/7949 PulSAR ADCs · The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR

EVAL-AD76MUXEDZ Preliminary Technical Data

Rev. PrD | Page 24 of 26

Figure 24.Inner Layer 3

(Viewed from top side)

Figure 25. Bottom Layer

(Viewed from top side)

Page 25: Evaluation Board For AD7682/89/99/7949 PulSAR ADCs · The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR

Preliminary Technical Data EVAL-AD76MUXEDZ

Rev. PrD | Page 25 of 26

Figure 26. Bottom Layer

(Viewed from Bottom Side)

Page 26: Evaluation Board For AD7682/89/99/7949 PulSAR ADCs · The EVAL-AD76MUXCBZ is an evaluation board for the 20 lead PulSAR AD7682, AD7689, AD7699, and AD7949 14-bit and 16-bit PulSAR

EVAL-AD76MUXEDZ Preliminary Technical Data

Rev. PrD | Page 26 of 26

ORDERING GUIDE Evaluation Board Model Product EVAL-AD7682EDZ AD7682BCPZ EVAL-AD7689EDZ AD7689BCPZ EVAL-AD7699EDZ AD7699BCPZ EVAL-AD7949EDZ AD7949BCPZ EVAL-CED1Z Capture/Controller Board

©2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. EB08140-0-3/09(PrD)