Dual, High Voltage Current Shunt Monitor

The AD8213 is a dual-channel, precision current sense amplifier. It features a set gain of 20 V/V, with a maximum ±0.5% gain error over the entire temperature range. The buffered output voltage directly interfaces with any typical converter. Excellent common-mode rejection from −2 V to +65 V, is independent of the 5 V supply. The AD8213 performs unidirectional current measurements across a shunt resistor in a variety of industrial and automotive applications, such as motor control, solenoid control, or battery management.

Special circuitry is devoted to output linearity being maintained throughout the input differential voltage range of 0 mV to 250 mV, regardless of the common-mode voltage present. The AD8213 also features additional pins that allow the user to low-pass filter the input signal before amplifying, via an external capacitor to ground. The AD8213 has an operating temperature range of −40°C to +125°C for the Y grade, −40°C to +150°C for the H grade and is offered in a small 10-lead MSOP package.

Applications

* High-side current sensing

Motor controls

Transmission controls

Diesel injection controls

Engine management

Suspension controls

Vehicle dynamic controls

DC to DC converters

* ±4000 V human body model (HBM) ESD

* High common-mode input voltage range

* −2 V to +65 V operating

* −3 V to +68 V survival

* Buffered output voltage

* Wide operating temperature range

* −40°C to +125°C for Y grade

* −40°C to +150°C for H grade

* Excellent ac and dc performance

* −10 ppm/°C typical gain drift

* 120 dB typical CMRR at dc

* Qualified for automotive applications