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AD5252 Datasheet(PDF) 2 Page - Analog Devices

Part No. AD5252
Description  Dual 64-and 256-Position I2C Nonvolatile Memory Digital Potentiometers
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD5252 Datasheet(HTML) 2 Page - Analog Devices

 
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AD5251/AD5252
Rev.0 | Page 2 of 28
TABLE OF CONTENTS
Electrical Characteristics ................................................................. 3
Interface Timing Characteristics................................................ 7
Absolute Maximum Ratings............................................................ 8
ESD Caution.................................................................................. 8
Pin Configuration and Function Description .............................. 9
I2C Interface Timing Diagram.................................................... 9
I2C Interface General Description................................................ 10
I2C Interface Detail Description ................................................... 11
RDAC/EEMEM Write ............................................................... 11
I2C Compatible 2-Wire Serial Bus................................................ 15
Typical Performance Characteristics ........................................... 16
Operational Overview.................................................................... 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 ......................................... 21
Power-Up and Power-Down Sequences.................................. 21
Layout and Power Supply Biasing ............................................ 22
Digital Potentiometer Operation ............................................. 22
Programmable Rheostat Operation......................................... 22
Programmable Potentiometer Operation ............................... 23
Applications..................................................................................... 24
LCD Panel Vcom Adjustment ..................................................... 24
Current-Sensing Amplifier ....................................................... 24
Adjustable High Power LED Driver ........................................ 24
Outline Dimensions ....................................................................... 25
Ordering Guide .......................................................................... 25
REVISION HISTORY
6/04—Revision 0: Initial Version


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