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AD8205YR-REEL Datasheet(PDF) 1 Page - Analog Devices |
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AD8205YR-REEL Datasheet(HTML) 1 Page - Analog Devices |
1 / 12 page Single-Supply 42 V System Difference Amplifier AD8205 Rev. 0 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: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved. FEATURES Ideal for current shunt applications High common-mode voltage range −2 V to +65 V operating −5 V to +68 V survival Gain = 50 Wide operating temperature range Die: −40°C to +150°C 8-lead SOIC: −40°C to +125°C Adjustable offset Available in SOIC and die form EXCELLENT AC AND DC PERFORMANCE 15 µV/°C offset drift 30 ppm/°C gain drift 80 dB CMRR dc to 20 kHz APPLICATIONS High-side current sensing in: Motor controls Transmission controls Diesel injection controls Engine management Suspension controls Vehicle dynamic controls DC-to-dc converters FUNCTIONAL BLOCK DIAGRAM AD8205 8 1 4 2 3 7 5 6 +IN –IN NC NC = NO CONNECT GND V+ OUT VREF1 VREF2 Figure 1. GENERAL DESCRIPTION The AD8205 is a single-supply difference amplifier for amplify- ing small differential voltages in the presence of large common- mode voltages. The operating input common-mode voltage range extends from −2 V to +65 V. The typical single-supply voltage is 5 V. The AD8205 is offered in die and packaged form. The operating temperature range for the die is 25°C higher (up to 150°C) than the packaged part to enable the user to apply the AD8205 in high temperature applications. Excellent dc performance over temperature keeps errors in the measurement loop to a minimum. Offset drift is typically less than 15 µV/°C, and gain drift is typically below 30 ppm/°C. The output offset can be adjusted from 0.05 V to 4.8 V with a 5 V supply by using the VREF1 and VREF2 pins. With VREF1 at- tached to the V+ pin, and VREF2 attached to the GND pin, the output is set at half scale. Attaching both pins to GND causes the output to be unipolar, starting near ground. Attaching both pins to V+ causes the output to be unipolar starting near V+. Other offsets can be obtained by applying an external voltage to the VREF1 and VREF2 pins. |
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