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The World Leader in High Performance Signal Processing Solutions Operational and Instrumentation Amplifiers Analog Dialogue Milano - Bologna November 15
The World Leader in High Performance Signal Processing
Solutions Operational and Instrumentation Amplifiers Analog
Dialogue Milano - Bologna November 15 th -17 th, 2011 Matteo Crosio
- FAE
Slide 2
Agenda Some topology issue Rail-to-Rail definitions High Speed
Amplifiers CFB vs VFB ADC Drivers Precision Op-Amps Zero-Drift OVP
Specialty Amplifiers Instrumentation Amps Difference Amps Current
Shunt Amps Thermocouple I/Fs 2
Slide 3
Some topology issue Rail-to-Rail Amplifiers What is the
problem? 3
Slide 4
Classic Op Amp Input stage MOSFET Good for operation that needs
to include only ONE of the supply rails Vsupply + Vsupply Vin,low =
Vcurrent_src + Vgs Vin+ Vin- nMOS Vcurrent_src Vgs + Vsupply + -
Vcurrent_src 4
Slide 5
Classic R-2-R input: dual input pairs - MOSFET Low input
voltage p1 High input voltage p2 n1 n2 + Vsupply Input can span the
entire supply voltage range - Vsupply Issue: crossover distortion
when the signal level moves through the range where one input stage
turns off and the other one turns on. 5
Slide 6
Zero Crossover Input: How Does It Work? Built in charge pump
Input Stage Vsupply > Vin Charge Pump +Vsupply 6
Slide 7
Rail-to-Rail Output Stage Op-Amp output voltage can swing very
close to the power rails. Voltage gain depends on load. This is an
Almost Rail-to- Rail output stage (when it is lightly loaded).
Generating higher voltage power rail can help overcoming the
problem. 7
Slide 8
The World Leader in High Performance Signal Processing
Solutions High Speed Op Amps (>50 MHz)
Slide 9
How Do We Classify High Speed Amplifiers? High Speed Amplifiers
Have Bandwidths > 50MHz AC specification driven Wide Bandwidths:
50MHz 2.1GHz High Slew Rate: 30V/s 5500V/s Fast Settling Time: 1s
4ns Precision Amplifiers Bandwidths < 50MHz Offset Voltage <
1mV Low Drift 9
Slide 10
Voltage Feedback (VFB) Op-Amp Model For large value of A(s),
the gain is simply 1 + R2/R1 GBWP costant (as the gain increase,
the BW decreases) 10
Slide 11
Current Feedback (CFB) Op-Amp Model BW depends only on feedback
resistor. Then, considering R2 constant, gain can be changed
modifying R1. BW independent on the gain. 11
Slide 12
Voltage Feedback vs Current Feedback 12
Slide 13
AD8000 - 1.5GHz Ultrahigh Speed Op-Amp 13
Slide 14
ADA4960-1 Ultra-high Speed ADC Driver KEY FEATURES Ultra-low
Distortion 70 dBc H2/H3 @ 250 MHz 66 dBc H2/H3 @ 500 MHz 55 dBc
H2/H3 @ 1 GHz Low input voltage noise: 3.6 nV/Hz High Speed 3 dB
bandwidth of 5000 MHz, G = 1 Slew rate: 8000 V/s Fast overdrive
recovery of 1 ns Low quiescent power: 60mA/channel Externally
adjustable gain with fixed input impedance. Single-ended or
Differential Input Differential Output Adjustable output CM voltage
5V to +/- 2.5 V Supply Voltage Small 3 mm x 3 mm LFCSP package Key
Benefit Excellent distortion performance out to 1GHz bandwidth.
Price @ 1kTemp $6.95-40C +105C ReleaseSamples March, 2010 Now
14
Slide 15
Target Applications Low Power, Low Distortion ADC Driver
Ideally Suited for Driving Giga-Sample/Sec ADCs Industrial &
Instrumentation High end digital storage oscilloscopes Satellite
Communications Terrestrial Receivers Electronic Surveillance and
Countermeasures Data Acquisition Subsystems 15
Slide 16
ADA4930-1/-2 Very low noise ADC driver for 1.8V ADCs KEY
FEATURES Ultra-Low input voltage noise: 1.3nV/Hz Ultra-low
Distortion 104/-100dBc H2/H3 @ 10 MHz 79/-82 dBc H2/H3 @ 70 MHz
72/-75 dBc H2/H3 @ 100 MHz High Speed 3 dB bandwidth of 2200 MHz, G
= 1 Slew rate: 2300 V/s (25% to 75%) 0.1% Settling time of 4ns 1ns
overdrive recovery time Externally adjustable gain Single-ended or
Differential Input Differential Output Adjustable output CM voltage
from 0.9V to 2.2V 3.3V or 5V Supply Voltage Single - 3 mm x 3 mm
LFCSP package Dual - 4 mm x 4 mm LFCSP package Enhanced Product
(NiPdAu finish) version coming soon! Key Benefit Capable of driving
0.9V Vcm, 1.8V ADCs, off of a single 3.3V or 5V supply Price @
1kTemp $3.79/6.59 -40C +105C ReleaseSamples September 2010Now RGRG
RGRG RFRF RFRF V IN V OUT+ V OUT- V OCM + _ + _ + _ 16
Slide 17
Target Markets Direct Conversion Radio transceivers Basestation
(multi-standard) Point to Point MRI (Magnetic Resonance Imaging)
systems Electronic test equipment Electronic countermeasures
17
Slide 18
ADA4898-1/-2: High Voltage, Low Noise, Low Distortion, Unity
Gain Stable, High Speed Op Amps FEATURES Ultralow noise 0.9 nV/Hz
2.4 pA/Hz 1.2 nV/Hz @10 Hz Ultralow distortion: 93 dBc at 500 kHz
Wide supply voltage range: 5 V to 16 V High speed 3 dB bandwidth:
65 MHz (G = +1) Slew rate: 55 V/s Unity gain stable Low input
offset voltage: 150 V max Low input offset voltage drift: 1 V/C Low
input bias current: 0.1 A Low input bias current drift: 2 nA/C
Supply current: 8 mA Power-down feature Key Benefit Low noise, low
distortion for 16-bit and 18-bit systems TempPrice @ 1k -40C
105C$1.91/$3.21 SamplingFinal Release ADA4898-1 Now ADA4898-2 Now
ADA4898-1 Oct 08 ADA4898-2 Spring10 18
Slide 19
ADA4898 Target Applications -High Supply, Low Noise, Low
Distortion OpAmp ATE and Instruments General high dynamic range
signal processing Data Acquisition Single-ended ADC/DAC Buffers
Active Filters Receiver Front ends Medical Instrumentation
Ultrasound drive side circuitry PLL Loop filter Enables low jitter
and wide frequency range Automotive Radar For ACC (Adaptive Cruise
Control) and airbag early warning 19
Slide 20
ADA4940-1/-2 Ultra Low Power, Low Distortion ADC Driver KEY
FEATURES Extremely low harmonic distortion: 90dB THD @ 2 MHz Low
input voltage noise: 4 nV/Hz Very low power consumption: 6.5 mW (5
V supply) 1 mV typical offset voltage Externally adjustable gain
Differential-to-differential or Single-to- differential operation
Balanced outputs 16-bit settling time: 85 ns Output voltage swing
from V S + 0.1 V to +V S 0.1 V Adjustable output common-mode
voltage Flexible power supplies: 3 V to 10 V Pb-free, 8-lead SOIC
Pb-free, 3 mm 3 mm, 16-lead LFCSP Pb-free, 4 mm 4 mm, 24-lead LFCSP
Key Benefit Capable of driving low power, high resolution, high
performance ADCs with resolutions up to 18 bits from dc to 2 MHz on
just 1.25 mA of quiescent current Temp $1.89 (single) -40C +105C
Price @ 1k ReleaseSamples Q2 2011Now 20
Slide 21
ADA4896/4897 Product Concept 1 nV/Hz, Low Power, R-R Output,
and High Speed Op Amps FEATURES Low Wideband noise 1 nV/Hz 3 pA/Hz
Low 1/f Noise 2 nV/Hz @10 Hz 9 pA/Hz @10 Hz Supply current: 3
mA/amplifier Low distortion: 110dBc @ 100 kHz Wide supply voltage
range: 2.7V to 10V Rail-Rail Output High speed 3 dB bandwidth:
>200 MHz (G = +1) Slew rate: 100 V/s High output current: 100mA
ADA4896-2 (Dual): 8-LFCSP, 8-MSOP ADA4897-1 (Single): SO-8, SOT23-6
ADA4897-2 (Dual): MSOP-10 Key Benefit Low noise, low power for
16-bit and 18-bit systems TempPrice @ 1k -40C 105C$1.89/$3.21
SamplingFinal Release NowSummer 2011 21
Slide 22
Gain and Level Shifting Circuits Single-Ended Configuration
22
Slide 23
Single-Ended Level Shifter with Gain Requires Rail-to-Rail Op
Amp +V S + BIPOLAR INPUT R2 R1 ADC RTRT V1 = +0.3V V CM = V1 1 + R2
R1 A1 = +3V 499 2k 0.25V = +1.5V 56.2 +1.5V /+ 1V INPUT RANGE =
+0.5V TO +2.5V NOISE GAIN = 1 + R2 R1 SIGNAL GAIN = R2 R1 INPUT
COMMON-MODE VOLTAGE = +0.3V OUTPUT SWING RAIL-TO-RAIL OUTPUT
REQUIRED = 5 = 4 23
AD813x Differential ADC Driver Functional Diagram and
Equivalent Circuit ~ RFRF RFRF RGRG RGRG V OUT V OUT+ + GAIN =
RFRGRFRG V IN+ V IN EQUIVALENT CIRCUIT: V OCM (A) (B) 25
Slide 26
DC Coupled AD8138 Driving AD9235 12-Bit, 20/40/65MSPS CMOS ADC,
Baseband Signal + AD9235 12-BIT ADC A IN A IN+ V IN 0.5V 49.9 499
523 10k 49.9 +1.5V V OCM AD8138 0.1F 100pF 0.1F 100pF +0.75V + /
0.125V +1.5V / + 0.25V +1.5V + / 0.25V Set for 1V p-p Differential
Input Span +3V FROM 50 SOURCE f s = 20/40/65MSPS 26
Slide 27
AD8475 Funnel Amp + ADC Driver Interface 10V or 5V signal on
single-supply amplifier Integrates 4 steps into 1: Attenuation
Single-Ended-to- Differential Conversion Level-Shift Drive
differential 18-bit SAR ADC up to 4MSPS with few external
components 27
Slide 28
AD8475 Funnel Amp + ADC Driver 2 Pin-selectable precision
attenuating gains 0.4X and 0.8X Level-translating VOCM pin sets
output common mode Single-ended to differential conversion
Differential rail-to-rail output Input range beyond the rail 150
MHz bandwidth 10 nV/Hz output noise 50 V/S slew rate -112dB THD+N 1
ppm/C gain drift 500 V max output offset 3 mA supply current Key
FeaturesKey Specifications Applications Industrial control modules
Data acquisition systems Medical monitoring devices ADC driver
28
Slide 29
Signal Routing Op Amp Packaging and Pinout Packaging plays a
large role in high-speed applications Smaller packages Better at
high speeds/high frequency Compact layout Less parasitics Analog
Devices Low Distortion (dedicated feedback) Pinout Compact layout
Streamline signal flow Lower distortion 29
Slide 30
Op Amp SOIC Packaging Traditional SOIC-8 layout Feedback routed
around or underneath amplifier 30
Slide 31
Op Amp SOIC Packaging Traditional SOIC-8 layout Feedback routed
around or underneath amplifier 31
Slide 32
Analog Devices Low Distortion Dedicated Feedback Pinout Pinout
enables compact layout Lower distortion Improved thermal
performance LFCSP AD8099, AD8045, AD8000, ADA4899, ADA4857, ADA4817
Also used on Differential Amplifiers Disable FBFB 1 2 3 4 8 7 6 5
IN VSVS +IN +V S V OUT NC + - Original Pin-Out NC 32
The World Leader in High Performance Signal Processing
Solutions Precision Op Amps (
How Do We Classify Precision Amplifiers? High Speed Amplifiers
Have Bandwidths > 50MHz AC specification driven Wide Bandwidths:
50MHz 2.1GHz High Slew Rate: 30V/s 5500V/s Fast Settling Time: 1s
4ns Precision Amplifiers Bandwidths < 50MHz Offset Voltage <
1mV Low input bias current < 100pA Low Drift 35
Slide 36
Auto-zero Op-Amps Concept A1: main amplifier A2: nulling
amplifier In sample mode S, A2 monitors the input offset voltage of
A1 and drives its output to zero by applying a correcting voltage
to A1s null pin. In auto-zero mode Z, A2 correct its own offset. C1
and C2 holds the correction to A1 and A2 respectively. In order to
reduce intermodulation distortion introduced by switching, a
pseudo-random sampling frequency is used. 36
Slide 37
Auto-zero Op-Amps Noise If sampling frequency is considerably
higher than 1/f corner frequnecy of the input noise, the autozero
amplifier coninuosly nulls out the 1/f noise on a sample-by-sample
basis. Theoretically no 1/f noise, but wideband noise is worse.
Much filtering required. Low offset and drift. 37
Slide 38
AD8657/AD8659 18V RRIO, Power, Precision CMOS Op Amp V OS I SY
Noise @ 1kBandwidthSupplyI BIAS TempIOIO 350 V max.22 A max 50 nV/
Hz 200 kHz2.7V to 18V100 pA Max-40C 125C10 mA AD8657 Dual Released
AD8659 Quad In Development Package: MSOP-8, LFCSP Price 1ku : $0.95
Package: TSSOP-14, LFCSP Sample Availability: now 4-20 mA Current
Loop Transmitter 38
Slide 39
AD8546/AD8548 18V RRIO, Power, CMOS Op Amp I SY Noise @
1kBandwidthSupplyI BIAS TempIOIO 22 A maxRRIO 50 nV/ Hz 200 kHz2.7V
to 18V100 pA Max-40C 125C10 mA AD8546 Dual Released AD8548 Quad In
Development Package: MSOP-8, LFCSP Price: $0.78 for 1ku Package:
TSSOP-14, LFCSP Sample Availability: now ADI Advantages of the
voltage noise, 2X the current drive and of the package size than
any competitive amplifier at a supply current less than 22 A
39
Slide 40
ADA4077-x Next Generation OPx177 36V Precision, Low Power Op
Amp IsyV OS TCVosNoiseIbGBWVoltagesTemp 500A max Grade A: 50V max
Grade B: 25V max Grade A: 0.5V/ C max Grade B: 0.15V/ C max 7 nV/Hz
1.5nA max 3.5 MHz3V - 36V-40C - 125C ADA4077-1 Single In
Development ADA4077-2 Dual In DevelopmentADA4077-4 Quad In
Development Package: MSOP-8, SOT23 Package: SOIC-8, MSOP-8 Sample
Availability: 3QCY11 Package: SOIC-14, TSSOP-14 ADI Advantages
Compared to the competition, the ADA4077 offers 3X BW with
competitive power consumption, offset, noise, input bias current,
Slew Rate, CMRR, PSRR, or price. Closest Competitors 40
Slide 41
ADA4528-x Worlds Most Accurate Op Amp Low noise zero drift
amplifier VosT C VosIsy / AmpCMRRBandwidthSlew RateTemp RangeV
Supply 2.5 V max 0.015 V/C max 1.8 mA max115 dB min4 MHz 0.4 V/ s
-40C - 125C2.2V to 5.5V ADA4528-1 Single Released ADA4528-2 Dual In
Development Package: SOT23-5, MSOP-8 Price: $1.15 1ku Package:
LFCSP-8, MSOP-8 a No 1/f Noise 5.6nV/ Hz ADI Advantages Worlds Most
Accurate Op amp, Lowest voltage noise zero- drift op amp 41
Slide 42
V OS T C V OS Noise @ 1kBandwidthSupplyI BIAS I SY Temp 10 V
max.10V max 59 nV/ Hz 2.5 MHz5 33V100 pA Max1.3 mA max -40C 125C
ADA4638-1 Single In Development ADA4638-2 Dual In Developmen t
Package: LFCSP-8, SOIC-8 Sample Availability: 2QCY11 ADA4638-x 30V
Zero Drift, RRO Op Amp Thermopile Op Amp @ 15V ADI Advantages
Lowest power/ Speed ratio 30V Zero Drift Op amp 42
Slide 43
Input Voltage Protection at all levels +Vs -Vs Within Input
Voltage range (IVR) Linear region Outside of IVR but inside Power
supply setting Rail to Rail Linearity degrades Outside of Power
Supply setting 43
Slide 44
Applied Input Inside of IVR 44
Slide 45
Within Input Voltage range (IVR) Assumption: Rise/fall times of
input pulse within the propagation delay of the amplifier 45
Slide 46
Within Input Voltage range (IVR) Op amp can not be used as
comparator 46
Slide 47
Input Differential protection Note: AD8599 +-1V at inputNote:
OP113 +-9V at input 47
Slide 48
Diode Protection slows Op-Amps (i.e. OP27) R f 100 Input fast
and large signal pulse (>1 V) R f 500 Output can drive the
current requirement (ex. 10V swing on R f =500 ohm, I L 20 mA ); op
amp in active mode and a smooth transition occurs R f > 2 K
Reduced phase margin due to C in (8 pF) Place a small capacitor (20
pF to 50 pF) in parallel with R f to eliminate this problem 48
Slide 49
Applied input outside of IVR but inside Power supply setting
49
Slide 50
Phase reversal V OUT -+-+ Vin Output Voltage Phase reversal
occurs when the Input Common Mode voltage exceeded (typically,
towards the negative range). One of the internal stages of op- amp
has no longer sufficient bias voltage across it and turns off. The
output voltage swings to the opposite rail. Typically happens in
the Unity- Gain Follower configuration. Not a problem in the
Inverting configuration (both input constant and at ground or mid
supply in some single-supply application). Vsupply Over-Voltage
Protection will also serve to prevent Output Voltage Phase-Reversal
50
Slide 51
Applied Input Slightly above the rail issues 51
Slide 52
ESD protections Slightly above: Input current increase during
overvoltage, causing stress and temperature increase 52
Slide 53
Slightly above Spec can be asymmetrical 53
Slide 54
Far out of the rail - issues 54
Slide 55
Recommended Protection Scheme R limit introduces noise D1 D2
prevent internal diodes to activate (forward voltage 300mV vs
700mV) Some diode can be very leaky, so that leakage current adds
to op-amp bias current Additional pole in the signal path due to
Diode junction cap and R limit 55
Slide 56
OVP Solution Alternatives Internal ESD Protection Advantage
Included on all Op Amps Disadvantage Not design for long duration
overvoltage events External Diode Protection Advantage Differential
or Common Mode variations Inexpensive Disadvantage Effects on
parametric performance Reduces Precision Variable leakage current
and capacitance Increase in non-linearity Need external circuitry
Complex External Solutions Advantage Can be designed to endure long
duration OVP events Disadvantage Need external circuitry (MOV Metal
Oxide Varistor, TransOrb, etc.) Expensive Takes board space Limited
lifetime/events for certain components Effects parametric
performance ADI Integrated OVP Solution Advantage Provides most, if
not all protection needed (Gen 3 up to 32V above/below supply
voltage rails) Endures infinite duration events Parametric effects
included in the datasheet Saves board area Reduces cost versus
complex external solutions Disadvantage ??? 56
Slide 57
ADA4096-x Improved OPX96 with Gen 3 OVP 36V, RRIO, Precision,
Power, RRIO Op Amp with OVP IsyGBWVosVos DriftNoiseIBIB VoltageTemp
Range 90 A max 450 kHz 300 V max1 V/C27 nV/ Hz 10 nA max3 V - 36
V-40C - 125C ADA4096-1 Single Concept ADA4096-2 Dual In Development
ADA4096-4 Quad In Development Package: SC70-5, LFCSP-8 (3x3)
Package: MSOP-8, LFCSP-8 (3x3) Samples Available: 4QCY10 Package:
TSSOP-14, LFCSP-14 (3x3) Samples Available: 4QCY11 ADI Advantages
With 2X BW, Vos and Vin, and ~1/10 Isy of the closest competition;
the ADA4096 provides the industrys highest level of over voltage
protection for robust operation in demanding I&I applications
57
Slide 58
The World Leader in High Performance Signal Processing
Solutions Specialty Amplifiers
Slide 59
Integrated Amplifiers Difference Amplifier (Current Sense)
Difference Amplifier (Low Gain) Instrumentation Amplifier VGA Input
Impedance MM kk GG Bandwidth up to 3 MHzup to 20 MHzup to 10 MHzup
to 280 MHz Gains 3 to 1000.1 to 21 to 10,000-30dB to 70dB CMV Range
-2V to 500V270VMust stay within supply rails CMRR 85dB80dB120dBNA
Applications Shunt resistor measurement Solenoid Current Motor
control Power Supply Monitor Line Voltage measurements ADC driving
Cable driving Sensor Signal Condition Transducer Interface Heart
Monitors Bridge Interface Ultrasound Communications PET scanners 2k
Integration of Op-Amps and Resistors produces Better Performance
& frequently Lower Cost 59
Slide 60
Amplifier Integration Resistor Divider Input Conditions Input
Voltages Larger than Supply Rails Vin = 120V. +/-Vs = 12V Level
Shift, diff to single ended Single IC Solution High CMRR vs. Freq,
Temp Matched Resistors 0.01% High Input Impedance Level Shift, Diff
to single-ended Single resistor set the gain High CMRR vs. Freq,
Temp Matched Resistors 0.01% op ampinstrumentation ampdifference
amp A device that measures small, precision signals in a noisy
environment 60
Slide 61
The World Leader in High Performance Signal Processing
Solutions Instrumentation Amplifiers 61
Slide 62
AD8229: High Temperature, Low Noise Instrumentation Amplifier
Sampling: Now Key specifications GUARANTEED for 210 o C Operation
(see datasheet) Low noise: 1nV/Hz High CMR G=10: 106dB Wide
supplies: +/-4V to +/-17V Slew Rate: 22V/s Bandwidth: 15MHz @ G=1
Low THD: -130dBc @ 1kHz Fast settling time: 0.001%, 900ns Gain
Range: 1-1000 62
Slide 63
Key Features Versatile Digital Gain settings: G =
1,2,4,8,16,32,64,128 Single supply range: 3V to 5.5 V Uncommitted
Op Amp Rail to rail output stage Key Specs 80dB min CMRR (G= 1)
2.7MHz bandwidth, (G =1) 32 nV/Hz, @ 1 kHz. Typ, +5V 10ppm/C gain
drift 50nV/C max input offset drift -40C to +125C 1k
priceProduction $1.69 Now Package 16-L LFCSP 4mm x 4mm AD8231
Programmable Gain Zero-Drift In Amp with Uncommitted Output
Amplifier 63
Slide 64
AD8231: Differential Outputs interface with Differential Input
ADC Forward compatible with new differential input ADCs As ADCs
move to lower voltage supplies, they move towards differential
inputs. Operates on same supply as todays ADCs 64
Slide 65
Key Features Gain set with 1 external resistor (gain range 1 to
1000) Rail to Rail Outputs Wide power supply range: 4.6V to 18 V
Key Specs 80dBmin CMRR to 5 kHz ( G = 1) 1.5MHz 3 dB bandwidth (G =
1) 2 V/s slew rate 14 nV/Hz, @ 1 kHz max. Wide FET Input Voltage
Range. Vs +0.2 to +Vs-2.5V 5V/C max input offset drift 10pA input
bias current, max. (B-grade) AD8220 A-GradeAD8220 B-Grade $2.29
1k/yr $3.49 1k/yr Package 8-L MSOP 3mm x 3mm AD8220 FET Input
In-Amp Instrumentation Amplifier AD8220 -IN 1 RG 2 3 +IN 4 5 +VS
VOUT VREF -VS 8 7 6 Smallest FET Input In-Amp 65
Slide 66
AD8221 Instrumentation Amplifier Highest Performance and
Smallest Package KEY FEATURES High AC CMRR: 80dB @ 10kHz G=1 (min)
High DC CMRR: 90dB (B min), 80dB (A min) Conditions Large Signals:
+/-18V Extremely High Input Impedance: 100G Low 0.1 to 10Hz Noise:
0.25 V p-p 8-L MSOP Package PackageCMRRInput NoiseVos
DriftGainsTempPrice @ 1k 8-lead MSOP 8-lead SOIC 80 dB (min) 90 dB
(min) 8nv/Hz 0.9 V/ C 0.3 V/ C 1-1000 -40C 125C $ 1.99 MSOP $ 2.32
SOIC MultipurposeIndustrial Data AcquisitionPrecision Medical Wide
Supplies: 2.3V to 18V Easy to Use, Plug and Play Lower Cost than
Any Alternative Conditions Large Signals:+/-18V Extremely High
Input Impedance: 100G High DC and AC CMRR: 80dB @ 10kHz G =1 (min)
Low 0.1 to 10Hz Noise: 0.25 V High DC CMRR: 90dB (B min), 80dB (A
min) MSOP Package Available 66
Slide 67
AD8222 Dual Channel Instrumentation Amplifier Key Features Gain
set with 1 external resistor (gain range 1 to 1000) Wide power
supply range: 2.3 V to 18 V Key Specs AD8221 Performance in a Dual!
80dBmin CMRR to 5 kHz ( G = 1) 825kHz 3 dB bandwidth (G = 1) 2 V/s
slew rate 8 nV/Hz, @ 1 kHz max. 70 V max input offset voltage 0.6
V/C max input offset drift 0.5 nA input bias current Package 16-L
LFCSP 4mm x 4mm Industrys Smallest Dual In- Amp AD8222
A-GradeAD8222 B-Grade $3.59 1k/yr $6.29 1k/yr 67
Slide 68
Key Features Digital Gain settings: G = 1, 2, 5, 10 (AD8250) G
= 1, 2, 4, 8 (AD8251) Wide power supply range: 5 V to 15 V Supplies
Key Specs 80dBmin CMRR to 50 kHz ( G = 1) 10MHz 3 dB bandwidth (G
=1) 20 V/s slew rate Settling Time 0.5us to 0.01% 18 nV/Hz, @ 1 kHz
max. 10ppm/C gain drift 1.7V/C max input offset drift -110dB THD at
1kHz -40C to +85C 1k PriceProduction $4.95 Released Package 10-L
MSOP 3mm x 3mm AD8250/51 Digital Programmable Gain Instrumentation
Amplifier (PGIA) Smallest PGIA Smallest PGIA Available in 10-L MSOP
68
Slide 69
Key Features Digital Gain settings: 1000 G = 1, 10, 100, 1000
Wide power supply range: 5 V to 15 V Supplies Supply current: 4.5mA
Key Specs 80dBmin CMRR to 50 kHz ( G = 1) 17MHz 3 dB bandwidth (G
=1) 20 V/s slew rate Settling Time 0.5us to 0.01% 12 nV/Hz, @ 1 kHz
max. 10pmm/C gain drift -40C to +85C 1k PriceProduction $4.95
Released Package 10-L MSOP 3mm x 3mm AD8253 Digital Programmable
Gain Instrumentation Amplifier (PGIA) Smallest PGIA Smallest PGIA
Available in 10-L MSOP 69
Slide 70
The World Leader in High Performance Signal Processing
Solutions Difference Amplifiers 70
Slide 71
AD8273 Dual Channel Difference Amplifier Key Features Fixed
Gain: G = 0.5, 2 Beyond Power Supplies Input Range: 3(-Vs)+4.5 to
3(+Vs)-4.5 Key Specs (G=0.5) Low Distortion 0.004% @ 1kHz, 10 Vpp,
600 CMRR: 86dB Bandwidth: 20 MHz Slew Rate: 20 V/s min Settling
Time (to 0.01%): 0.8s Gain Drift: 10 ppm/C max Offset Voltage: 700
V max Supply Range: 2.5V to 18V Quiescent Current: 2.5mA / Amp max
-40C to 85C 1k PriceProduction $1.67 Now Package 14-L SOIC 71
Slide 72
AD8273 as High Voltage Differential Line Driver High swing
signals: 10V Wide power supply range: up to 18V Low distortion:
THD+N 0.00025% Low power option: AD8277 72
Slide 73
AD8275: G=0.2 Level Translation 16-bit ADC Driver Key Features
Difference Amplifier G = 0.2 Interface 10V or 5V signal to
single-supply ADCs High Integration Internal built resistors for
level translation Key Specs Wide Input Range (+Vs - 40V) to
(-Vs+40V) Low Distortion THD+N: -106 dBc @ 1 kHz, 4 Vpp, 2K load 16
bit accuracy at 250 kSPS 1 ppm/C max gain drift 86dB min CMRR
@50/60Hz, up to 50kHz 10 MHz min -3dB Bandwidth Settling time:
450nS to 0.001% Gain Accuracy: 0.024% (max) 500 V max offset
voltage Rail-to-rail output Supply Range: 3.3V to 15V -40C to 85C
1k price (A Grade)1k price (B Grade) $1.60 $2.10 Package 8-L MSOP
3mm x 4.9mm 73
Slide 74
AD8275: Interface 10V Signals to 5V ADC Drive 16-bit SAR ADC up
to 250kSPS with few external components Drive 18-bit SAR ADC up to
100kSPS Product video available in product page Evaluation board
will be available soon ADR444/5 (4.096/5V) 74
Slide 75
AD8275 Application Examples Migrate from discrete to AD8275 #1
AD8275 is used in power metering control and measurement equipments
successfully for OVP: transformers preliminary side floating, CMV
up to 8V Powered by 5V and the input signals can cover -35V to 40V
Drive 14/16-bit SAR ADC Small size: MSOP package Low cost #2 AD8275
used in dynamic weighscale for Integration level: attenuation,
voltage shifter and ADC driver Excellent gain drift: 1ppm/C max
75
Slide 76
AD628: High Common Mode Voltage Programmable Gain Difference
Amplifier Key Features Common Mode Voltage Range: 120V @ 15V power
Gain range: 0.1 to 100 Key Specs Offset: 1.5 mV max Offset Drift: 8
V/ max Gain Drift: 5ppm/ max CMRR: 75 dB min Bandwidth: 600kHz @
G=0.1 Slew Rate: 0.3V/S Supply Range: Dual: 2.25V to 18V Single:
4.5V to 36V Quiescent Current: 1.6mA max -40 to 85 1k
PriceProduction $1.76 Now Package: 8-L MSOP / SOIC G = (1 + R EXT1
/R EXT2 ) 76
Slide 77
AD628 Rejects High CMV High VoltageSignal Conditioning Low
Voltage Single-Supply ADC +/-120V +3.3V ref Low Voltage! 77
Slide 78
The World Leader in High Performance Signal Processing
Solutions Difference & Current Shunt Amplifiers AD8210 78
Slide 79
AD8205/6: 65V Single Supply Difference Amplifier Key Features
Wide CMV Operating Range -2V to +65V operation -5V to +70V survival
Gain of 50 (AD8205) Gain of 20 (AD8206) Sense Current in 1 or 2
Directions Operating Temperature Range: Die: -40C to +150C SOIC:
-40C to +125C Platforms High Side Current Sense 42V & 14V
automotive applications Motor control, solenoid control,
diagnostics Commercial truck applications Motor control, solenoid
control, diagnostics AD8205AD8206 1.49 1k/yr 1.35 1k/yr Key Specs
Offset: 2mV Max 25C Offset: 4.5mV Max -40C to 125C CMRR: 80 dB Gain
Drift: 30ppm/C 79
Slide 80
AD8205/6 H-Bridge Motor Control Application H-Bridge AD8205
Shunt Motor 80
Slide 81
AD8210: Current Sense Amplifier Key Features Wide CMV Operating
Range -2V to +65V (70V survival) Fixed Gain of 20 Sense Current In
1 or 2 Directions Voltage Out 500kHz Frequency Range 5M Input
Impedance Operating Temperature Range: SOIC: -40C to +125C
Platforms Industrial and Automotive Battery Charging Motor Control
Industrial solenoid control Switching Power Converter Control
Diagnostics Key Specs Offset: 1mV Max Offset Drift: 8V/C Max DC
CMRR: 120 dB typ AC CMRR: 80dB Min up to 40kHz Gain Drift: 20ppm/C
PriceProduction 1.79 1k/yr Now V Out G=20 Vs AD8210 V Ref 2 V Ref 1
- IN+ IN GND 81
Slide 82
AD8210 Application Examples 14V To control circuitry DC Motor
Control DC/DC Converter V Out 42V Shunt ECU V Out G=20 Vs AD8210 V
Ref 2 V Ref 1 - IN+ IN GND Reference Motor Control Applications
Industrial DC Motor Control Medical Imaging Machine Motor Control
Automotive DC Motor and Solenoid Control DC/DC Converter
Applications Power Supply Base Station Battery Charging Automotive
Battery Charging 82
Slide 83
Definition of Low Side and High Side (Load Referenced) CLAMP
DIODE Solenoid Shunt Switch CLAMP DIODE Solenoid SHUNT Switch Shunt
CLAMP DIODE Solenoid Switch Shunt High Side Sense Low Side Sense
High Side Drive Low Side Drive CLAMP DIODE Solenoid Switch Shunt
83
Slide 84
Key Features Wide CMV Operating Range +6V to +65V Continuous
-0.3V to 70V Survival Adjustable Output Range Integrated Shunt
Regulator Operating Temperature Range: MSOP: -40C to +125C Operates
from the High Side Rail Platforms Industrial and Automotive Battery
Charging DC/DC Converters Electronic / Smart Fuse Diagnostics Key
Specs 100nS Maximum Propagation Delay 3mV Input Offset 3% Shunt
Regulator Accuracy 10mV Hysteresis PriceProduction 0.75 1k/yr Now
AD8214: Current Sense Threshold Detector 84
Slide 85
AD8210 AD8214 FET Driver Controller Unique AD8214 Application:
Over Current Protection Application (Hardware Shutdown) Response
time: 200nS with AD8214 Greater than 5S without AD8214 Over Current
Condition FET Driver Shut off in 200nS Load, Power FET, Shunt, and
Current Sense Amp Protected Load 85
Iso- Thermal Block Amplifier Front Ends for Thermocouples AMP
ADC DSP Human Interface Computer Interface/ Isolation AMP + Cold
Junction Compensation Voltage Reference PowerMUX Amplifier Front
Ends ADIsimThermocouple TM Safety/ Monitoring AD59x/AD849x 87
Slide 88
Thermocouple Solutions (Amplifier Front Ends) Key
Considerations Very small signals (40V/ o C) 1/f noise also an
issue Low offset and offset drift Autozero architectures attractive
Technical Trade-offs Noise vs. power dissipation How to select a
part Accuracy dominates consideration, then go with a uController
solution Linearization algorithms can be customized If Time To
Market is chief concern, use system solution with integrated InAmps
optimized for temperature range 88
Slide 89
AD849x Thermocouple Amplifier Next Generation Monolithic
Thermocouple Amplifiers Factory trimmed for type J and K
thermocouples Calibrated for high accuracy Cold Junction
Compensation (CJC) IC temps of 25C and 60C Output voltage of 5mV/C
Active pull down Rail to Rail output swing Larger output
temperature range with smaller supply voltage Can measure negative
temperatures in single supply operation with REF pin Use REF pin to
calibrate out initial errors Wide Power supply range +2.7V to
+/-15V Low Power < 1mW typical Improved Common Mode Sensitivity
(Rejection) of 0.3C/V Operation to 125C for automotive Package -
Space saving MSOP-8, Lead Free Low Cost < $1 in Volume 89
Slide 90
Thermocouple Amplifier Concept 90
Slide 91
Thermocouple Front End Amplifiers Integrated Thermocouple Front
End Amplifiers Part NumberThermocouple TypeOptimized Application
AD8494JRoom Temperature AD8495KRoom Temperature AD8496JOven
AD8497KOven 91
Slide 92
Thermocouples Competitive Advantages Easy to use No software
needed Plug & Play Integration into existing data acquisition
system straightforward Simply add to unused channel Amps 92
Slide 93
Presented By: Matteo Crosio - FAE Analog Devices Parco
Tecnologico ENERGY PARK Building 03 Sud Via Monza 7/a 20871
Vimercate (MB) Italy +39 039 6848931 +39 342 1743332
[email protected] 93