AD5253/AD5254
TABLE OF CONTENTS
Rev. 0 | Page 2 of 28
Electrical Characteristics.................................................................3
1 k Version..................................................................................3
10 k, 50 k, 100 k 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
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2
C Interface.....................................................................................14
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2
C Interface General Description............................................14
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2
C Interface Detail Description...............................................15
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2
C 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