High Voltage, Current Shunt Monitor Data Sheet AD8215 FEATURES FUNCTIONAL BLOCK DIAGRAM IN+ IN 4000 V human body model (HBM) ESD High common-mode voltage range 2 V to +65 V operating 3 V to +68 V survival V+ A1 Buffered output voltage Wide operating temperature range PROPRIETARY 8-Lead SOIC: 40C to +125C OFFSET CIRCUITRY Excellent ac and dc performance 6 V/C typical offset drift OUT 8 ppm/C typical gain drift G = +20 120 dB typical CMRR at dc AD8215 Qualified for automotive applications GND APPLICATIONS Figure 1. High-side current sensing Motor controls Transmission controls Engine management Suspension controls Vehicle dynamic controls DC to dc converters GENERAL DESCRIPTION The AD8215 is a high voltage, precision current shunt monitor. Special circuitry is devoted to output linearity being maintained It features a set gain of 20 V/V, with a maximum 0.3% gain throughout the input differential voltage range of 0 mV to 250 mV, error over the entire temperature range. The buffered output regardless of the common-mode voltage present. The AD8215 voltage directly interfaces with any typical converter. Excellent has an operating temperature range of 40C to +125C and is common-mode rejection from 2 V to +65 V is independent of offered in a small 8-lead SOIC package. the 5 V supply. The AD8215 performs unidirectional current measurements across a shunt resistor in a variety of industrial and automotive applications, such as motor controls, solenoid controls, or battery management. Rev. B Document Feedback 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20082016 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 07203-001AD8215 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Application Notes ........................................................................... 11 Applications ....................................................................................... 1 Output Linearity ......................................................................... 11 Functional Block Diagram .............................................................. 1 Applications Information .............................................................. 12 General Description ......................................................................... 1 High-Side Current Sensing with a Low-Side Switch ............. 12 Revision History ............................................................................... 2 High-Side Current Sensing ....................................................... 12 Specif icat ions ..................................................................................... 3 Low-Side Current Sensing ........................................................ 12 Absolute Maximum Ratings ............................................................ 4 Outline Dimensions ....................................................................... 13 ESD Caution .................................................................................. 4 Ordering Guide .......................................................................... 13 Pin Configuration and Function Descriptions ............................. 5 Automotive Products ................................................................. 13 Typical Performance Characteristics ............................................. 6 Theory of Operation ...................................................................... 10 REVISION HISTORY 12/2016Rev. A to Rev. B Changes to Features Section and Applications Section ............... 1 Changes to Figure 30 ...................................................................... 12 10/2011Rev. 0 to Rev. A Change to Applications Section ...................................................... 1 Updated Outline Dimensions ....................................................... 13 Changes to Ordering Guide .......................................................... 13 Added Automotive Products Section .......................................... 13 1/2008Revision 0: Initial Version Rev. B Page 2 of 13