AD628, High Common-Mode Voltage, Programmable Gain Difference Amplifier Descriptions: The AD628 is a precision difference amplifier that combines excellent dc performance with high common-mode rejection over a wide range of frequencies. When used to scale high voltages, it allows simple conversion of standard control voltages or currents for use with single-supply ADCs. A wideband feedback loop minimizes distortion effects due to capacitor charging of S-? ADCs. A reference pin (VREF) provides a dc offset for converting bipolar to single-sided signals. The AD628 converts +5 V, +10 V, ±5 V, ±10 V, and 4 to 20 mA input signals to a single-ended output within the input range of single-supply ADCs. The AD628 has an input common mode and differential mode operating range of ±120 V. The high common mode, input impedance makes the device well suited for high voltage measurements across a shunt resistor. The inverting input of the buffer amplifier is available for making a remote Kelvin connection. A precision 10 kO resistor connected to an external pin is provided for either a low-pass filter or to attenuate large differential input signals. A single capacitor implements a lowpass filter. The AD628 operates from single and dual supplies and is available in an 8-lead SOICN or an 8-lead MSOP. It operates over the standard industrial temperature range of -40°C to +85°C. Features: - High common-mode input voltage range: ±120 V at VS = ±15 V - Gain range 0.1 to 100 - Operating temperature range: -40°C to +85°C - Supply voltage range - Dual supply: ±2.25 V to ±18 V - Single supply: 4.5 V to 36 V - Excellent ac and dc performance - Offset temperature stability RTI: 10 µV/°C maximum - Offset: ±1.5 V mV maximum - CMRR RTI: 75 dB minimum, dc to 500 Hz, G = +1 Applications: - High voltage current shunt sensing - Programmable logic controllers - Analog input front end signal conditioning +5 V, +10 V, ±5 V, ±10 V, and 4 to 20 mA - Isolation - Sensor signal conditioning - Power supply monitoring - Electrohydraulic controls - Motor controls https://elecena.pl/product/9715447/ad628arz-differential-amplifier-1-fold-600-khz-so-8 2017-08-06 https://elecena.pl/product/9715447/ad628arz-differential-amplifier-1-fold-600-khz-so-8 2018-01-11 https://elecena.pl/product/9715447/ad628arz-differential-amplifier-1-fold-600-khz-so-8 2018-03-27 https://elecena.pl/product/9715447/ad628arz-differential-amplifier-1-fold-600-khz-so-8 2018-05-04 https://elecena.pl/product/9715447/ad628arz-differential-amplifier-1-fold-600-khz-so-8 2018-12-17 https://elecena.pl/product/9715447/ad628arz-differential-amplifier-1-fold-600-khz-so-8 2021-04-27 https://elecena.pl/product/9715447/ad628arz-differential-amplifier-1-fold-600-khz-so-8 2023-01-06 https://elecena.pl/product/9715447/ad628arz-differential-amplifier-1-fold-600-khz-so-8 2023-04-18 https://elecena.pl/product/9715447/ad628arz-differential-amplifier-1-fold-600-khz-so-8 2024-05-30 https://elecena.pl/product/9715447/ad628arz-differential-amplifier-1-fold-600-khz-so-8 2025-10-13 https://elecena.pl/product/9715447/ad628arz-differential-amplifier-1-fold-600-khz-so-8 2025-12-27 https://elecena.pl/product/9715447/ad628arz-differential-amplifier-1-fold-600-khz-so-8 2026-01-23 https://elecena.pl/product/9715447/ad628arz-differential-amplifier-1-fold-600-khz-so-8 2026-02-13