AD8219BRMZ-RL【PDF 1/12 页】IC CURRENT MONITOR UNI-DIR 8MSOP

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Zero Drift, Unidirectional

Current Shunt Monitor

AD8219

Rev. A

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

www.analog.com

Fax: 781.461.3113

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癈 to +125癈

Excellent ac and dc performance

?00 nV/癈 typical offset drift

?0 礦 typical offset

? ppm/癈 typical gain drift

110 dB typical CMRR at dc

APPLICATIONS

High-side current sensing

48 V telecom

Power management

Base stations

Unidirectional motor control

Precision high voltage current sources

FUNCTIONAL BLOCK DIAGRAM

LDO

AD8219

+IN

OUT

GND

Figure 1.

GENERAL DESCRIPTION

The AD8219 is a high voltage, high resolution, current shunt

amplifier. It features a set gain of 60 V/V, with a maximum

?.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

current measurements across a shunt resistor in a variety of

industrial and telecom applications including motor control,

power management, and base station power amplifier bias

control.

The AD8219 offers breakthrough performance throughout

the 40癈 to +125癈 temperature range. It features a zero

drift core, which leads to a typical offset drift of ?00 nV/癈

throughout the operating temperature and common-mode

voltage range. Special attention is devoted to output linearity

being maintained throughout the input differential voltage range,

regardless of the common-mode voltage present, while the

typical input offset voltage is ?0 糣.

The AD8219 is offered in a 8-lead MSOP package.

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