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AD5258 Datasheet(PDF) 2 Page - Analog Devices

Part No. AD5258
Description  Nonvolatile, I2C-Compatible 64-Position, Digital Potentiometer
Download  24 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD5258 Datasheet(HTML) 2 Page - Analog Devices

 
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AD5258
Rev. 0 | Page 2 of 24
TABLE OF CONTENTS
Specifications..................................................................................... 3
Electrical Characteristics............................................................. 3
Timing Characteristics ................................................................ 5
Absolute Maximum Ratings............................................................ 6
ESD Caution.................................................................................. 6
Pin Configuration and Function Descriptions............................. 7
Typical Performance Characteristics ............................................. 8
Test Circuits..................................................................................... 13
Theory of Operation ...................................................................... 14
Programming the Variable Resistor......................................... 14
Programming the Potentiometer Divider ............................... 14
I2C Interface..................................................................................... 15
I2C Byte Formats ............................................................................. 16
Generic Interface ........................................................................ 16
Write Modes................................................................................ 17
Read Modes................................................................................. 17
Store/Restore Modes .................................................................. 17
Tolerance Readback Modes ...................................................... 18
ESD Protection of Digital Pins and Resistor Terminals........ 19
Power-Up Sequence ................................................................... 19
Layout and Power Supply Bypassing ....................................... 19
Multiple Devices on One Bus ................................................... 19
Evaluation Board ........................................................................ 19
Display Applications ...................................................................... 20
Circuitry ...................................................................................... 20
Outline Dimensions ....................................................................... 21
Ordering Guide .......................................................................... 21
REVISION HISTORY
3/05—Revision 0: Initial Version


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