GENERAL DESCRIPTION

The AD8417-2 is a high-voltage, high-resolution dual-channel current

shunt amplifier. It features an initial gain of 60 V/V and performs

bidirectional current measurements across a shunt resistor in

a variety of automotive and industrial 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 2× channel density, and a lower

cost per channel without compromising performance.

FEATURES

? 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 +36 V continuous

? Initial gain = 60 V/V

? Wide operating temperature range: ?40°C to +125°C

? Bidirectional operation

? Dual channel in a small 1 mm x 1.9 mm WLCSP

? Common-mode rejection ratio (CMRR): 86 dB, dc to 10 kHz

APPLICATIONS

? High-side current sensing in:

? Motor controls

? Solenoid controls

? Power management

? Low-side current sensing

? Diagnostic protection