AD629BRZ Datasheet PDF - ADI

●Product Details

●The AD629 is a difference amplifier with a very high input, common-mode voltage range. It is a precision device that allows the user to accurately measure differential signals in the presence of high common-mode voltages up to ±270 V. 

●The AD629 can replace costly isolation amplifiers in applications that do not require galvanic isolation. The device operates over a ±270 V common-mode voltage range and has inputs that are protected from common-mode or differential mode transients up to ±500 V.

●The AD629 has low offset, low offset drift, low gain error drift, low common-mode rejection drift, and excellent CMRR over a wide frequency range.

●The AD629 is available in low cost, 8-lead PDIP and 8-lead SOIC packages. For all packages (including die) and grades, performance is guaranteed over the industrial temperature range of −40°C to +85°C.

●Applications

● High voltage current sensing

● Battery cell voltage monitors

● Power supply current monitors

● Motor controls

● Isolation

●### Features and Benefits

● 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