AD5252EVAL(Rev0) データシートの表示（PDF） - Analog Devices

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AD5252EVAL
(Rev.:Rev0)

Dual 64-and 256-Position I2C Nonvolatile Memory Digital Potentiometers

Analog Devices 

AD5251/AD5252

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

REVISION HISTORY

6/04—Revision 0: Initial Version

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

Rev.0 | Page 2 of 28

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