AD623 Analog Devices, AD623 Datasheet
AD623
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AD623 Summary of contents
Page 1
... With no external resistor, the AD623 is configured for unity gain ( and with an external resistor, the AD623 can be programmed for gains up to 1,000. The AD623 holds errors to a minimum by providing superior AC CMRR that increases with increasing gain ...
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... 100 90 105 110 105 105 110 105 +0.01 (+V ) – 0.5 +0.01 S +0.01 (+V ) – 0.15 +0.01 S 800 100 –2– AD623B Typ Max Min Typ Max 1000 1 1000 0.03 0.10 0.03 0.05 0.10 0.35 0.10 0.35 0.10 0.35 0.10 0.35 0.10 0.35 0.10 0. 200 500 25 100 650 160 0.1 2 0.1 1 500 ...
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... S S (+V ) – 0.15 (– 0.05 (+ 800 800 100 100 0.3 0 AD623 Units % % % % ppm ppm/ C ppm pA pA – 1 – ...
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... ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 volts, which readily accumulate on the human body and on test equipment, can discharge without detection. Although the AD623 features proprietary ESD protection circuitry, permanent damage may still occur on these devices if they are subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid any performance degradation or loss of functionality ...
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... Figure 7. Typical Distribution for Input Offset Current +5, Single Supply N-8, SO-8 –5– – AD623 = 10 k unless otherwise noted 100 200 300 400 –600 –500 –400 –300 –200 –100 OUTPUT OFFSET VOLTAGE – –0.125 V; Package Option REF – ...
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... AD623 1600 1400 1200 1000 800 600 400 200 100 105 110 115 120 125 130 CMRR dB Figure 8. Typical Distribution for CMRR ( 100 GAIN = 100 GAIN = 1000 100 1k FREQUENCY – Hz Figure 9. Voltage Noise Spectral Density vs. Frequency ...
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... Figure 19. Maximum Output Voltage vs. Common Mode 2 REF 100 k L –7– AD623 x1000 x10 x1 x100 100k 10 100 1k 10k FREQUENCY – 10k 100k FREQUENCY – V ...
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... AD623 –1 –2 –3 –4 –5 –6 –5 –4 –3 –2 –1 0 COMMON MODE INPUT – Volts Figure 20. Maximum Output Voltage vs. Common Mode 100 – COMMON MODE INPUT – Volts Figure 21. Maximum Output Voltage vs. Common Mode, ...
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... Figure 29. Large Signal Pulse Response and Settling Time –10 (0.250 mV = 0.01%), C 100 1000 Figure 30. Large Signal Pulse Response and Settling Time 100, C Figure 31. Large Signal Pulse Response and Settling = 100 pF Time –1000 ( 0.01%), C L –9– AD623 = 100 100 100 pF L ...
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... AD623 Figure 32. Small Signal Pulse Response 100 pF L Figure 33. Small Signal Pulse Response 10 100 Figure 34. Small Signal Pulse Response G = 100 100 Figure 35. Small Signal Pulse Response 1000 100 Figure 36. Gain Nonlinearity – ...
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... Pin 5. The impedance of the reference pin is 100 applications requiring V/I conversion, a small resistor between Pins 5 and 6 is all that is needed. The bandwidth of the AD623 is reduced as the gain is increased, since all the amplifiers are of voltage feedback type. At unity gain the output amplifier that limits the bandwidth. There- fore even at higher gains the AD623 bandwidth does not roll off as quickly ...
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... INPUT AND OUTPUT OFFSET VOLTAGE The low errors of the AD623 are attributed to two sources, input and output errors. The output error is divided by the programmed gain when referred to the input. In practice, the input errors dominate at high gains and the output errors domi- nate at low gains ...
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... GROUNDING Since the AD623 output voltage is developed with respect to the +V potential on the reference terminal, many grounding problems S can be solved by simply by tying the REF pin to the appropri- 0.01 F ate “ ...
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... Output Buffering The AD623 is designed to drive loads greater. If the load is less that this value, the AD623’s output should be buff- ered with a precision single supply op amp such as the OP113. ...
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... Over a temperature range from –200 C to +200 C, the J-type thermocouple delivers a voltage ranging from –7.890 mV to 10.777 mV. A programmed gain on the AD623 of 100 (R 1. and a voltage on the AD623 REF pin results in the AD623’s output voltage ranging from 1.110 V to 3.077 V relative to ground. ...
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... AD623 Table IV. Maximum Attainable Gain and Resulting Output Swing for Different Input Conditions V V REF Pin CM DIFF 2 100 mV 2 100 2 2.5 V 2.5 V 100 mV 2 2 1.5 V 1.5 V 100 mV 1 ...