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AD5243 Datasheet(PDF) 2 Page - Analog Devices

Part No. AD5243
Description  Dual 256-Position I2C Compatible Digital Potentiometer
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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 2 page
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AD5243/AD5248
Rev. 0 | 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 Configurations and 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 ....................................... 14
Constant Bias to Retain Resistance Setting............................. 15
Evaluation Board ........................................................................ 15
I2C Interface .................................................................................... 16
I2C Compatible 2-Wire Serial Bus ........................................... 16
Outline Dimensions ....................................................................... 19
Ordering Guide .......................................................................... 19
REVISION HISTORY
Revision 0: Initial Version




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