The AD8217 is a high voltage, zero drift, high-resolution bi-directional current shunt amplifier. It features a set gain of 20 V/V, with a maximum ±0.3% gain error over the entire temperature range. The buffered output voltage directly interfaces with any typical converter. Excellent common-mode rejection is available throughout the 4.5 V to +80 V common mode input range.

The AD8217 performs unidirectional or bidirectional current measurements across a shunt resistor in a variety of applications, such as motor control, telecom, and power management. Using an internal LDO, the AD8217 can operate with a 4.5 V to 80 V supply when Vs=NC (no connect), or Vs can be connected to a separate 5 V supply. The user can enable an internal 80 mV reference, which offsets the output allowing for accurate zero load current measurements. Additionally, an external low impedance reference can be used to offset the output from 0 V to 5 V, allowing for bidirectional current sensing. This enhanced functionality, coupled with the zero drift operation of the AD8217, makes for a extremely precise, high resolution, current sense solution. The AD8217 features an operating temperature range of −40°C to +125°C and is offered in a small 8L-MSOP package.