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AD8209WBRMZ-R7 Datasheet(PDF) 1 Page - Analog Devices |
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AD8209WBRMZ-R7 Datasheet(HTML) 1 Page - Analog Devices |
1 / 16 page High Voltage, Precision Difference Amplifier AD8209 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother 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 ©2009 Analog Devices, Inc. All rights reserved. FEATURES ±8000 V HBM ESD AEC-Q100 qualified EMI filters included High common-mode voltage range −2 V to +45 V operating −24 V to +80 V survival Buffered output voltage Gain = 14 V/V Low-pass filter (single-pole or two-pole) Wide operating temperature range 8-lead MSOP: −40°C to +125°C Excellent ac and dc performance ±1 mV voltage offset −5 ppm/°C typical gain drift 80 dB CMRR minimum dc to 10 kHz APPLICATIONS High-side current sensing Motor controls Solenoid controls Power management Low-side current sensing Diagnostic protection FUNCTIONAL BLOCK DIAGRAM OUT IN+ IN– GND VS + – AD8209 G = 2 G = 7 A1 A2 + – EMI FILTER EMI FILTER EMI FILTER Figure 1. GENERAL DESCRIPTION The AD8209 is a single-supply difference amplifier ideal for amplifying and low-pass filtering small differential voltages in the presence of a large common-mode voltage. The input common- mode voltage range extends from −2 V to +45 V at a single +5 V supply. The AD8209 is qualified per AEC-Q100 specifications. The amplifier offers enhanced input overvoltage and ESD protection, and includes EMI filtering. Automotive applications demand robust, precision components for improved system control. The AD8209 provides excellent ac and dc performance, minimizing errors in the application. Typical offset and gain drift in the MSOP package are less than 5 μV/°C and 10 ppm/°C, respectively. The device also delivers a minimum CMRR of 80 dB from dc to 10 kHz. The AD8209 features an externally accessible 100 kΩ resistor at the output of the preamplifier (A1), which can be used for low- pass filtering and for establishing gains other than 14. |
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