AD708 Analog Devices, AD708 Datasheet
AD708
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AD708 Summary of contents
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... The combination of outstanding matching and individual specifications make the AD708 ideal for constructing high gain, precision instrumentation amplifiers. 2. The low offset voltage drift and low noise of the AD708 allow the designer to amplify very small signals without sacrificing overall system performance. 3. The AD708 10 V/μV typical open-loop gain and 140 dB common-mode rejection make it ideal for precision applications ...
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... AD708 TABLE OF CONTENTS Features .............................................................................................. 1 Pin Configuration............................................................................. 1 General Description ......................................................................... 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 5 ESD Caution.................................................................................. 5 Typical Performance Characteristics ............................................. 6 Matching Characteristics............................................................. 9 REVISION HISTORY 1/06—Rev Rev. C Updated Format..................................................................Universal Removed TO-99 Package ..................................................Universal Deleted AD707 References................................................Universal Deleted LT1002 Reference............................................................... 1 Deleted Figure 1 ...
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... AD708 Max 1 Unit 30 μV 50 μV 0.3 μV/°C μV/month pA/° 1 pA/°C 30 μV μV 50 μV/°C 0.3 1.0 nA 2.0 nA ...
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... Max ≥ 10 kΩ 13.5 14 LOAD ≥ 2 kΩ 12.5 13.0 LOAD ≥ 1 kΩ 12.0 12.5 LOAD to T 12.0 13.0 MAX 60 4.5 5.5 = ±15 V 135 165 S = ± ±3 ±18 = 25°C. A Rev Page AD708B AD708S Min Typ Max Min Typ 13.5 14.0 13.5 14 12.5 13.0 12.5 13 12.0 12.5 12.0 12.5 12.0 13 4.5 5.5 4.5 135 135 165 ...
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... Exposure to absolute S Indefinite maximum rating conditions for extended periods may affect +V and −V device reliability −65°C to +150°C −65°C to +125°C 300°C Rev Page AD708 ...
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... AD708 TYPICAL PERFORMANCE CHARACTERISTICS V = ±15 V and T = 25°C, unless otherwise noted –0.5 +V –1.0 –1.5 1.5 1.0 –V 0.5 – SUPPLY VOLTAGE (±V) Figure 2. Input Common-Mode Range vs. Supply Voltage +V S –0.5 +V OUT –1.0 –1.5 1.5 1.0 –V 0.5 – SUPPLY VOLTAGE (±V) Figure 3 ...
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... TEMPERATURE (°C) Figure 11. Open-Loop Gain vs. Temperature R = 2kΩ LOAD SUPPLY VOLTAGE ( 2kΩ 1000pF L PHASE MARGIN = 43° GAIN 0 100 1k 10k 100k 1M FREQUENCY (Hz) AD708 140 120 150 180 10M ...
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... AD708 160 140 120 100 0 100 1k FREQUENCY (Hz) Figure 14. Common-Mode Rejection vs. Frequency 2.8kHz MAX 10k FREQUENCY (Hz) Figure 15. Large Signal Frequency Response 160 140 120 100 0.001 0.01 0 100 FREQUENCY (Hz) Figure 16. Power Supply Rejection vs. Frequency ...
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... Rev Page –1.0 –0.8 –0.6 –0.4 –0.2 0 0.2 0.4 0.6 OFFSET CURRENT MATCH (nA) 0 –60 –40 – 100 TEMPERATURE (°C) Figure 23. PSRR Match vs. Temperature 0 –60 –40 – 100 TEMPERATURE (°C) Figure 24. CMRR Match vs. Temperature AD708 0.8 1.0 120 140 120 140 ...
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... The AD708 exhibits very low crosstalk as shown in Figure 25, Figure 26, and Figure 27. Figure 25 shows the offset voltage induced on Side B of the AD708 when Side A output is moving slowly (0.2 Hz) from − +10 V under no load. This is the least stressful situation to the part because the overall power in the chip does not change ...
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... OPERATION WITH A GAIN OF −100 To show the outstanding dc precision of the AD708 in a real application, Table 3 shows an error budget calculation for a gain of −100. This configuration is shown in Figure 28. Table 3. Maximum Error Contribution A = 100 (S Grade) V (Full Scale Error Sources OUT V 30 μV/100 mV ...
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... AD708 BRIDGE SIGNAL CONDITIONER The AD708 can be used in the circuit shown in Figure 30 to produce an accurate and inexpensive dynamic bridge condi- tioner. The low offset voltage match and low offset voltage drift match of the AD708 combine to achieve circuit performance better than all but the best instrumentation amplifiers. The ...
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... Dimensions shown in inches and (millimeters) ORDERING GUIDE Model Temperature Range AD708JN 0°C to +70°C 1 AD708JNZ 0°C to +70°C AD708AQ −40°C to +85°C AD708BQ −40°C to +85°C AD708SQ/883B −55°C to +125° Pb-free part. 0.325 (8.26) 0.310 (7.87) 0.300 (7.62) 0.195 (4.95) MAX 0.130 (3.30) 0.115 (2.92) 0.014 (0.36) 0.010 (0.25) ...
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... AD708 NOTES Rev Page ...
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... NOTES Rev Page AD708 ...
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... AD708 NOTES ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C05789-0-1/06(C) Rev Page ...