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AD8212 Arkusz danych(PDF) 1 Page - Analog Devices |
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AD8212 Arkusz danych(HTML) 1 Page - Analog Devices |
1 / 8 page High Voltage Current Shunt Monitor Preliminary Technical Data AD8212 Rev. PrA Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other 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 ©2006 Analog Devices, Inc. All rights reserved. FEATURES High common-mode voltage range 7 V to +65 V operating (no outside pass transistor) 7 V to >500 V survival (with outside pass transistor) Adjustable gain Bidirectional current measurement Wide operating temperature range Die: −40°C to +150°C 8-lead SOIC: −40°C to +125°C Available in SOIC and die form APPLICATIONS High-side current sensing Motor controls Battery monitoring Hybrid vehicle control Diesel injection controls Vehicle dynamic controls Dc-to-dc converters FUNCTIONAL BLOCK DIAGRAM LOAD AD8212 IOUT OFFSET ALPHA VPLUS IS RS +IN –IN + – 99kΩ COM BIAS RBIAS ROUT Figure 1. GENERAL DESCRIPTION The AD8212 is a self-biased current sense amplifier for level shifting and amplifying small differential voltages in the presence of common mode voltages exceeding 500 V1. The AD8212 offers excellent accuracy and programmable gain which can be set with a single resistor, making it ideal to use in industrial, automotive , and consumer applications. The AD8212 is offered in die and packaged form. The operating temperature range for the die is 25°C higher (up to 150°C) than that of the packaged part to enable the user to apply the AD8212 in high temperature applications. Excellent AC and DC performance over temperature keep errors in the measurement loop to a minimum. Offset drift is typically below 5 uV/ °C, and the gain drift is typically below 50 ppm/°C. 1 Depending upon Vce breakdown voltage of pass transistor |
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