AD629

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 Hz (AD629A) 86 dB minimum CMRR @ 500 Hz (AD629B) 500 kHz 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(–) ...