AD5245(Rev0) 查看數據表（PDF） - Analog Devices

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AD5245
(Rev.:Rev0)

256-Position I2C Compatible Digital Potentiometer

Analog Devices 

AD5245

TABLE OF CONTENTS

Electrical Characteristics—5 kΩ Version ...................................... 3

Electrical Characteristics—10 kΩ, 50 kΩ, 100 kΩ Versions ....... 4

Timing Characteristics—5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ Versions 5

Absolute Maximum Ratings............................................................ 5

Typical Performance Characteristics ............................................. 6

Test Circuits..................................................................................... 10

I2C Interface..................................................................................... 11

Operation......................................................................................... 12

Programming the Variable Resistor ......................................... 12

Programming the Potentiometer Divider ............................... 13

I2C Compatible 2-Wire Serial Bus............................................ 13

REVISION HISTORY

Revision 0: Initial Version

Level Shifting for Bidirectional Interface ................................ 14

ESD Protection ........................................................................... 14

Terminal Voltage Operating Range.......................................... 14

Power-Up Sequence ................................................................... 15

Layout and Power Supply Bypassing ....................................... 15

Pin Configuration and Function Descriptions........................... 15

Pin Configuration ...................................................................... 15

Pin Function Descriptions ........................................................ 15

Outline Dimensions ....................................................................... 16

Ordering Guide .......................................................................... 16

ESD Caution................................................................................ 16

Rev. 0 | Page 2 of 16

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