●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
Part 3D Model
