High Bandwidth, Bidirectional 65 V Difference Amplifier Data Sheet AD8216 FEATURES FUNCTIONAL BLOCK DIAGRAM V+ 4000 V HBM ESD 6 Ideal for current shunt applications +IN 8 High common-mode voltage range 5 OUT 4 V to +65 V operating 1 IN 40 V to +80 V survival 3 MHz bandwidth AD8216 7 V 1 REF <100 ns output propagation delay Gain: 3 V/V 3 V 2 REF Wide operating temperature range NC 4 Die: 40C to +150C 2 8-lead SOIC: 40C to +125C GND NC = NO CONNECT Adjustable output offset Figure 1. Available in 8-lead SOIC Excellent ac and dc performance 10 V/C offset drift 10 ppm/C gain drift Qualified for automotive applications APPLICATIONS High-side current sensing in DC-to-dc converters Motor controls Transmission controls Diesel-injection controls Engine management Suspension controls Vehicle dynamic controls GENERAL DESCRIPTION The AD8216 is a single-supply, difference amplifier ideal for Excellent ac and dc performance over temperature keep errors amplifying small differential voltages in the presence of large in the measurement loop to a minimum. Offset and gain drift common-mode voltages. The operating input common-mode are guaranteed to a maximum of 20 V/C and 15 ppm/C, voltage range extends from 4 V to +65 V. The typical supply respectively. voltage is 5 V. The AD8216 features a 3 MHz bandwidth, The output offset can be adjusted from 0.06 V to 4.9 V with a allowing for the input-to-output propagation delay that is 5 V supply by using the V 1 pin and the V 2 pin. With the REF REF always less than 150 ns. This feature is ideal for applications VREF1 pin attached to the V+ pin and the VREF2 pin attached to monitoring rapidly increasing and decreasing load currents. the GND pin, the output is set at half scale. Attaching both VREF1 The AD8216 is offered in a SOIC package. The operating and VREF2 to GND causes the output to be unipolar, starting temperature range is 40C to +125C. near ground. Attaching both VREF1 and VREF2 to V+ causes the output to be unipolar, starting near V+. Other offsets can be obtained by applying an external voltage to V 1 and V 2. REF REF Rev. C 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 20072015 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. 07062-001AD8216 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Ground Referenced Output ...................................................... 11 Applications ....................................................................................... 1 V+ Referenced Output .............................................................. 11 Functional Block Diagram .............................................................. 1 Bidirectional Operation ............................................................. 11 General Description ......................................................................... 1 External ReferenceD Output .................................................... 12 Revision History ............................................................................... 2 Splitting the Supply .................................................................... 12 Specifications ..................................................................................... 3 Splitting an External Reference ................................................ 12 Absolute Maximum Ratings ............................................................ 4 Applications Information .............................................................. 13 ESD Caution .................................................................................. 4 High-Side Current Sense with a Low-Side Switch ................. 13 Pin Configuration and Function Descriptions ............................. 5 High-Side Current Sense with a High-Side Switch ............... 13 Typical Performance Characteristics ............................................. 6 Outline Dimensions ....................................................................... 14 Theory of Operation ...................................................................... 10 Ordering Guide .......................................................................... 14 Output Offset Adjustment ............................................................. 11 Automotive Products ................................................................. 14 Unidirectional Operation .......................................................... 11 REVISION HISTORY 9/15Rev. B to Rev. C Changes to Figure 23 ...................................................................... 10 10/11Rev. A to Rev. B Changes to Ordering Guide .......................................................... 14 Added Automotive Products Section .......................................... 14 9/08Rev. 0 to Rev. A Changes to Features Section............................................................ 1 Changes to Figure 7 .......................................................................... 6 Changes to Figure 21 ........................................................................ 8 Changes to Table 4 and Figure 25 ................................................. 11 11/07Revision 0: Initial Version Rev. C Page 2 of 16