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AD8217 - Zero-Drift Current Shunt Monitor

General Description

The AD8217 is a high voltage, high-resolution current shunt amplifier.

Key Features

  • High common-mode voltage range 4.5 V to 80 V operating 0 V to 85 V survival Buffered output voltage Wide operating temperature range:.
  • 40°C to +125°C Excellent ac and dc performance ±100 nV/°C typical offset drift ±100 µV/°C typical offset ±5 ppm/°C typical gain drift 100 dB typical CMRR at dc.

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High Resolution, Zero-Drift Current Shunt Monitor AD8217 FEATURES High common-mode voltage range 4.5 V to 80 V operating 0 V to 85 V survival Buffered output voltage Wide operating temperature range: −40°C to +125°C Excellent ac and dc performance ±100 nV/°C typical offset drift ±100 µV/°C typical offset ±5 ppm/°C typical gain drift 100 dB typical CMRR at dc FUNCTIONAL BLOCK DIAGRAM AD8217 –IN +IN R2 LDO 09161-001 R4 R1 OUT R3 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 AD8217 is a high voltage, high-resolution current shunt amplifier. It features a set gain of 20 V/V, with a maximum ±0.35% gain error over the entire temperature range.