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High Performance, Low Power, Rail-to-Rail Precision Instrumentation Amplifier
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FEATURES CONNECTION DIAGRAM
AD8422 –IN 1 RG 2 RG 3 6 REF +IN 4 5 –VS 8 +VS 7 VOUT TOP VIEW
(Not to Scale) Figure 1. 8-Lead MSOP (RM), 8-Lead SOIC (R)
–20
RL = 2kΩ
VOUT = ±10V –30
–40
–50 AMPLITUDE (dBc) Low power: 330 µA maximum quiescent current
Rail-to-rail output
Low noise and distortion
8 nV/√Hz maximum input voltage noise at 1 kHz
0.15 µV p-p RTI noise (G = 100)
0.5 ppm nonlinearity with 2 kΩ load (G = 1)
Excellent ac specifications
80 dB minimum CMRR at 10 kHz (G = 1)
2.2 MHz bandwidth (G = 1)
High precision dc performance (AD8422BRZ)
150 dB minimum CMRR (G = 1000)
0.04% maximum gain error (G = 1000)
0.3 µV/°C maximum input offset drift
0.5 nA maximum input bias current
Wide supply range
4.6 V to 36 V single supply …