AD629 PDF Datasheet
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Description
This is Difference Amplifier. COMMON-MODE REJECTION RATIO (dB)
00783-002
OUTPUT ERROR (2mV, DIV)
00783-003
FEATURES
Improved replacement for: INA117P and INA117KU ±270 V common-mode voltage range Input protection to
±500 V common mode ±500 V differential mode Wide power supply range (±2.5 V to ±18 V) ±10 V output swing on ±12 V supply 1 mA maximum power supply current
HIGH ACCURACY DC PERFORMANCE 3 ppm maximum gain nonlinearity (AD629B) 20 μV, °C maximum offset drift (AD629A) 10 μV, °C maximum offset drift (AD629B) 10 ppm, °C maximum gain drift
EXCELLENT AC SPECIFICATIONS 77 dB minimum CMRR @ 500 H- (AD629A) 86 dB minimum CMRR @ 500 H- (AD629B) 500 kH- bandwidth
APPLICATIONS
High voltage current sensing Battery cell voltage monitors Power supply current monitors Motor controls Isolation
100
95
90
85
80
75
70
65
60
55
5020
100 1k FREQUENCY (Hz)
10k
Figure 2. Common-Mode Rejection Ratio vs. Frequency
20k
High Common-Mode Voltage, Difference Amplifier AD629
FUNCTIONAL BLOCK DIAGRAM
REF( ) .