1 mm × 1.9 mm WLCSP, High Common-Mode, Bidirectional, Zero Drift, Current Sense Amplifier

The AD8417-2 is a high voltage, high resolution, and dual channel current sense amplifier. It features an initial gain of 60 V/V, with a maximum ±0.3% gain error over the entire temperature range. The AD8417-2 performs bidirectional current measurements across a shunt resistor in a variety of applications, including motor control, power management, and solenoid control.

The AD8417-2 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 device 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 AD8417-2 is offered in a small 10-ball 1 mm × 1.9 mm WLCSP. It requires a smaller board area than a typical single-channel current sense amplifier, increasing channel density, without compromising performance.

APPLICATIONS

* High-side current sensing in:

* Motor controls

* Solenoid controls

* Power management

* Low-side current sensing

* Diagnostic protection

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* 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 +42 V continuous