The AD8418 is a high voltage, high resolution current shunt amplifier. It features an initial gain of 20 V/V, with a maximum ±0.15% gain error over the entire temperature range. The buffered output voltage directly interfaces with any typical converter. The AD8418 offers excellent input common-mode rejection from −2 V to +70 V. The AD8418 performs bidirectional current measurements across a shunt resistor in a variety of automotive and industrial applications, including motor control, battery management, and solenoid control. The AD8418 offers breakthrough performance throughout the −40°C to +125°C temperature range. It features a zero drift core, which leads to a typical offset drift of 0.1 μV/°C throughout the operating temperature range and the common-mode voltage range. The AD8418 is fully qualified for automotive applications and includes EMI filters and patented circuitry to enable output accuracy with pulse-width modulation (PWM) type input common-mode voltages. The typical input offset voltage is ±200 μV. The AD8418 is offered in 8-lead MSOP and SOIC packages. Applications * High-side current sensing in Motor controls Solenoid controls Power management * Low-side current sensing * Diagnostic protection * Typical 0.1 μV/°C offset drift * Maximum ±400 μV voltage offset over full temperature range * 2.7 V to 5.5 V power supply operating range * Electromagnetic interference (EMI) filters Included * High common-mode input voltage range −2 V to +70 V operating −4 V to +85 V survival * Initial gain = 20 V/V * Wide operating temperature range: −40°C to +125°C * Bidirectional operation * Available in 8-lead SOIC and 8-lead MSOP * Common-mode rejection ratio (CMRR): 86 dB, dc to 10 kHz * Qualified for automotive applications https://elecena.pl/product/4594695/bidirectional-zero-drift-current-sense-amplifier 2014-03-20 https://elecena.pl/product/4594695/bidirectional-zero-drift-current-sense-amplifier 2018-03-28 https://elecena.pl/product/4594695/bidirectional-zero-drift-current-sense-amplifier 2025-01-17