The AD8479 is a difference amplifier with a very high input common-mode voltage range. The AD8479 is a precision device that allows the user to accurately measure differential signals in the presence of high common-mode voltages up to ±600 V. The AD8479 can replace costly isolation amplifiers in applications that do not require galvanic isolation. The device operates over a ±600 V common-mode voltage range and has inputs that are protected from common-mode or differential mode transients up to ±600 V. The AD8479 has low offset voltage, low offset voltage drift, low gain drift, low common-mode rejection drift, and excellent common-mode rejection ratio (CMRR) over a wide frequency range. The AD8479 is available in a space-saving 8-lead SOIC package and is operational over the −40°C to +125°C temperature range. Applications * High voltage current sensing * Battery cell voltage monitors * Power supply current monitors * Motor controls * Isolation * ±600 V common-mode voltage range * Rail-to-rail output * Fixed gain of 1 * 550 μA typical power supply current * Excellent ac specifications * 90 dB minimum CMRR * 310 kHz bandwidth * High accuracy dc performance * ±5 ppm maximum gain nonlinearity * ±10 µV/°C maximum offset voltage drift * ±5 ppm/°C maximum gain drift https://elecena.pl/product/4188988/very-high-common-mode-voltage-precision-difference-amplifier 2013-07-01 https://elecena.pl/product/4188988/very-high-common-mode-voltage-precision-difference-amplifier 2018-03-28 https://elecena.pl/product/4188988/very-high-common-mode-voltage-precision-difference-amplifier 2025-01-17