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AD8219 датащи(PDF) 1 Page - Analog Devices |
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AD8219 датащи(HTML) 1 Page - Analog Devices |
1 / 16 page Zero Drift, Unidirectional Current Shunt Monitor AD8219 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. 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 ©2011 Analog Devices, Inc. All rights reserved. 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 APPLICATIONS High-side current sensing 48 V telecom Power management Base stations Unidirectional motor control Precision high voltage current sources FUNCTIONAL BLOCK DIAGRAM LDO R2 R1 AD8219 R4 R3 +IN VS –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 ±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 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°C to +125°C temperature range. It features a zero drift core, which leads to a typical offset drift of ±100 nV/°C 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 ±50 µV. The AD8219 is offered in a 8-lead MSOP package. |
Аналогичный номер детали - AD8219 |
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Аналогичное описание - AD8219 |
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