AD8479 Series

Very High Common-Mode Voltage Precision Difference Amplifier

Catalog

Very High Common-Mode Voltage Precision Difference Amplifier

Part	Mounting Type	Output Type	-3db Bandwidth	Slew Rate	Current - Output / Channel	Current - Supply	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Voltage - Input Offset	Amplifier Type	Number of Circuits	Voltage - Supply Span (Max) [Max]	Voltage - Supply Span (Min) [Min]	Package / Case	Package / Case [y]	Package / Case [x]
Analog Devices AD8479ARZ-RL	Surface Mount	Rail-to-Rail	130 kHz	8 V/µs	55 mA	550 µA	125 °C	-40 °C	8-SOIC	500 çV	General Purpose	1	36 V	5 V	8-SOIC	3.9 mm	0.154 in
Analog Devices AD8479ARZ	Surface Mount	Rail-to-Rail	130 kHz	8 V/µs	55 mA	550 µA	125 °C	-40 °C	8-SOIC	500 çV	General Purpose	1	36 V	5 V	8-SOIC	3.9 mm	0.154 in
Analog Devices AD8479TRZ-EP-R7	Surface Mount	Rail-to-Rail	130 kHz	9 V/µs	55 mA	550 µA	125 °C	-55 °C	8-SOIC	500 çV	General Purpose	1			8-SOIC	3.9 mm	0.154 in
Analog Devices AD8479BRZ-RL	Surface Mount	Rail-to-Rail	130 kHz	8 V/µs	55 mA	550 µA	125 °C	-40 °C	8-SOIC	500 çV	General Purpose	1	36 V	5 V	8-SOIC	3.9 mm	0.154 in
Analog Devices AD8479BRZ	Surface Mount	Rail-to-Rail	130 kHz	8 V/µs	55 mA	550 µA	125 °C	-40 °C	8-SOIC	500 çV	General Purpose	1	36 V	5 V	8-SOIC	3.9 mm	0.154 in

Catalog

Very High Common-Mode Voltage Precision Difference Amplifier

Key Features

• ±600 V common-mode voltage range

• Rail-to-rail output

• Fixed gain of 1

• 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

• Wide power supply range of ±2.5 V to ±18 V

• DownloadAD8479-EP data sheet(pdf)

• Military temperature range (−55°C to +125°C)

• Controlled manufacturing baseline

• One assembly/test site

• One fabrication site

• Product change notification

• Qualification data available on request

• A62/19619 VID DSCC Drawing Number

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.The AD8479 can replace costly isolation amplifiers in applications that do not require galvanic isolation. The device operates over a ±600 V common-mode voltage range and has inputs that are protected from common-mode or differential mode transients up to ±600 V.The AD8479 has low offset voltage, low offset voltage drift, low gain drift, low common-mode rejection drift, and excellent common-mode rejection ratio (CMRR) over a wide frequency range.The AD8479 is available in a space-saving 8-lead SOIC package and is operational over the −40°C to +125°C temperature range.ApplicationsHigh voltage current sensingBattery cell voltage monitorsPower supply current monitorsMotor controlsIsolation