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AD8479 - Very High Common-Mode Voltage Precision Difference Amplifier

General Description

The AD8479 is a difference amplifier with a very high input common-mode voltage range.

The AD8479 is a precision device that allows the user to accurately measure differential signals in the presence of high common-mode voltages up to ±600 V.

Key Features

  • ±600 V common-mode voltage range Rail-to-rail output Fixed gain of 1 Wide power supply range of ±2.5 V to ±18 V 550 μA typical power supply current Excellent ac specifications 90 dB minimum CMRR 310 kHz bandwidth High accuracy dc performance 5 ppm maximum gain nonlinearity 10 µV/°C maximum offset voltage drift 5 ppm/°C maximum gain drift.

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Datasheet Details

Part number AD8479
Manufacturer Analog Devices
File Size 394.22 KB
Description Very High Common-Mode Voltage Precision Difference Amplifier
Datasheet download datasheet AD8479 Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Data Sheet FEATURES ±600 V common-mode voltage range Rail-to-rail output Fixed gain of 1 Wide power supply range of ±2.5 V to ±18 V 550 μA typical power supply current Excellent ac specifications 90 dB minimum CMRR 310 kHz bandwidth High accuracy dc performance 5 ppm maximum gain nonlinearity 10 µV/°C maximum offset voltage drift 5 ppm/°C maximum gain drift APPLICATIONS High voltage current sensing Battery cell voltage monitors Power supply current monitors Motor controls Isolation Very High Common-Mode Voltage Precision Difference Amplifier AD8479 FUNCTIONAL BLOCK DIAGRAM AD8479 REF(–) 1 8 NC 1MΩ –IN 2 +IN 3 1MΩ –VS 4 7 +VS 6 OUTPUT 5 REF(+) 11118-001 NOTES 1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN. Figure 1.