AD8219 - Analog Devices

AD8219 Unidirectional Current Shunt Monitor

The AD8219 is a high voltage, high resolution, current shunt amplifier. It features a set gain of 60 V/V, with a maximum ±0.3% gain error over the entire temperature range. The buffered output voltage directly interfaces with any typical converter. The AD8219 offers excellent input common-mode rejection from 4 V to 80 V. The AD8219 performs unidirectional cu.

Features

High common-mode voltage range 4 V to 80 V operating −0.3 V to +85 V survival Buffered output voltage Gain = 60 V/V Wide operating temperature range: −40°C to +125°C Excellent ac and dc performance ±100 nV/°C typical offset drift ±50 µV/°C typical offset ±5 ppm/°C typical gain drift 110 dB typical CMRR at dc FUNCTIONAL BLOCK DIAGRAM VS R4 LDO
  –IN +IN R2 R3 09415-001 R1 OUT AD8219 GND Figure 1. APPLICATIONS High-side current sensing 48 V telecom Power management Base stations Unidirectional motor control Precision high voltage current sources GENERAL DESCRIPTION The AD8219 is a high volta.