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AD5162 Datasheet(PDF) 2 Page - Analog Devices

Part No. AD5162
Description  Dual 256-Position SPI Digital Potentiometer
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD5162
Rev. A | Page 2 of 20
TABLE OF CONTENTS
Electrical Characteristics—2.5 kΩ Version ................................... 3
Electrical Characteristics—10 kΩ, 50 kΩ, 100 kΩ Versions ....... 4
Timing Characteristics—All Versions ........................................... 5
Absolute Maximum Ratings............................................................ 6
ESD Caution.................................................................................. 6
Pin Configuration and Function Descriptions............................. 7
Pin Configuration......................................................................... 7
Pin Function Descriptions .......................................................... 7
Typical Performance Characteristics ............................................. 8
Test Circuits..................................................................................... 12
Theory of Operation ...................................................................... 13
Programming the Variable Resistor and Voltage.................... 13
Programming the Potentiometer Divider............................... 14
ESD Protection ........................................................................... 14
Terminal Voltage Operating Range.......................................... 14
Power-Up Sequence ................................................................... 14
Layout and Power Supply Bypassing ....................................... 15
Constant Bias to Retain Resistance Setting............................. 15
Evaluation Board ........................................................................ 15
SPI Interface .................................................................................... 16
SPI Compatible 3-Wire Serial Bus ........................................... 16
Outline Dimensions ....................................................................... 17
Ordering Guide .......................................................................... 17
REVISION HISTORY
11/03 Changed from REV. 0 to REV. A:
Changes to Electrical Characteristics.................................... Page 3
11/03 Revision 0: Initial Version




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