GENERAL DESCRIPTION

The AD8211 is a high voltage, precision current shunt amplifier. It features a set gain of 20 V/V, with a typical ±0.35 gain error over the entire temperature range. The buffered output voltage directly interfaces with any typical converter. Excellent commonmode rejection from −2 V to +65 V is independent of the 5 V supply. The AD8211 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.

FEATURES

Qualified for automotive applications

±4000 V human body model (HBM) electrostatic discharge (ESD)

High common-mode input voltage range: −2 V to +65 V

Continuous input voltage range: −3 V to +68 V

Buffered output voltage

Wide operating temperature range

5-lead SOT: −40°C to +125°C

Excellent ac and dc performance

5 µV/°C typical offset drift

−13 ppm/°C typical gain vs. temperature

120 dB typical common-mode rejection ratio (CMRR) at dc

APPLICATIONS

High-side current sensing

Motor controls

Transmission controls

Engine management

Suspension controls

Vehicle dynamic controls

DC-to-dc converters