AD8418AWHRZ-RL

SP Amp Zero Drift Amp Single 5.5V 8Pin SOIC N T/R

Product Details

The AD8418A 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 AD8418A offers excellent input common-mode rejection from −2 V to +70 V. The AD8418A 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 AD8418A offers breakthrough performance throughout the −40°C to +150°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 AD8418A is qualified for automotive applications. 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 ±100 μV. The AD8418A 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

### Features and Benefits

.

Typical 0.1 µV/°C offset drift

.

Maximum ±200 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 continuous

−4 V to +85 V survival

.

Minimum DC common-mode rejection ratio CMRR: 90 dB

.

Initial gain = 20 V/V

.

Wide operating temperature range:

AD8418AWB: −40°C to +125°C

AD8418AWH: −40°C to +150°C

.

Bidirectional operation

.

Available in 8-lead SOIC and 8-lead MSOP

.

Qualified for automotive applications