Analog Devices' current sense amplifier achieves industry’s highest accuracy for industrial, automotive apps

NORWOOD, USA: Analog Devices Inc. has introduced the industry’s most accurate high-voltage amplifier for current sensing applications.

The AD8207 zero-drift, high-voltage, bi-directional current sense amplifier meets the robust performance and quality requirements for motor and solenoid control in industrial and automotive applications.

The product features breakthrough temperature accuracy specified at a maximum of 1 μV/°C offset drift over the automotive temperature range of -40 degrees C to 125 degrees C -- a 5-fold improvement over competing devices. Click here to see the AD8207 Current Sense Amplifier video.

The unique architecture of the AD8207 accurately amplifies small differential current shunt voltages in the presence of rapidly changing common-mode voltages ranging from -4 V to 65 V. The new current sense amplifier rejects PWM (pulse width modulation) input common-mode voltages, while the zero-drift architecture yields the lowest offset drift performance available today. Click here to download the datasheet and order samples.

”For customers who need automotive-grade performance, the AD8207 is the only zero-drift current sense amplifier with high bandwidth and a common-mode voltage range that extends below ground,” said Steve Sockolov, director, Precision Signal Conditioning Group, Analog Devices.

“The industry’s lowest guaranteed offset drift, coupled with greater than 150-kHz bandwidth, and maximum 0.3 percent gain error, means the AD8207 achieves best-in-class accuracy without requiring the larger PCB layout and multi-temperature production calibration of discrete alternatives.”