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AD5253 Datasheet(PDF) 2 Page - Analog Devices

Part No. AD5253
Description  Quad 64-/256-Position I2C Nonvolatile Memory Digital Potentiometers
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD5253 Datasheet(HTML) 2 Page - Analog Devices

 
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AD5253/AD5254
Rev. 0 | Page 2 of 28
TABLE OF CONTENTS
Electrical Characteristics ................................................................. 3
1 kΩ Version.................................................................................. 3
10 kΩ, 50 kΩ, 100 kΩ Versions ................................................... 5
Interface Timing Characteristics (All Parts)............................. 7
Absolute Maximum Ratings............................................................ 8
ESD Caution.................................................................................. 8
Pin Configuration and Functional Descriptions.......................... 9
Typical Performance Characteristics ........................................... 10
I2C Interface..................................................................................... 14
I2C Interface General Description............................................ 14
I2C Interface Detail Description ............................................... 15
I2C Compatible 2-Wire Serial Bus............................................ 19
Theory of Operation ...................................................................... 20
Linear Increment and Decrement Commands ...................... 20
±6 dB Adjustments (Doubling/Halving Wiper Setting)........ 20
Digital Input/Output Configuration........................................ 21
Multiple Devices On One Bus .................................................. 21
Terminal Voltage Operation Range ......................................... 22
Power-Up and Power-Down Sequences.................................. 22
Layout and Power Supply Biasing ............................................ 22
Digital Potentiometer Operation ............................................. 23
Programmable Rheostat Operation......................................... 23
Programmable Potentiometer Operation ............................... 24
Applications..................................................................................... 25
RGB LED LCD Backlight Controller....................................... 25
Outline Dimensions ....................................................................... 27
Ordering Guide .......................................................................... 27
REVISION HISTORY
Revision 0: Initial Version


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