AD5162BRM100 Ver la hoja de datos (PDF) - Analog Devices

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AD5162BRM100

Dual, 256-Position, SPI Digital Potentiometer

Analog Devices 

AD5162

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

Functional Block Diagram .............................................................. 1

General Description ......................................................................... 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

Electrical Characteristics: 2.5 kΩ Version................................. 3

Electrical Characteristics: 10 kΩ, 50 kΩ, and 100 kΩ Versions

......................................................................................................... 4

Timing Characteristics: All Versions ......................................... 5

Absolute Maximum Ratings............................................................ 6

ESD Caution.................................................................................. 6

Pin Configuration and Function Descriptions............................. 7

Typical Performance Characteristics ............................................. 8

Test Circuits..................................................................................... 12

REVISION HISTORY

12/10—Rev. B to Rev.C

Added Automotive Parts to Features Section ............................... 1

Added Automotive Products Paragraph...................................... 17

4/09—Rev. A to Rev. B

Changes to Features Section............................................................ 1

Changes to DC Characteristics—Rheostat Mode Parameter and

to DC Characteristics—Potentiometer Divider Mode Parameter,

Table 1 ................................................................................................ 3

Updated Outline Dimensions ....................................................... 17

Changes to Ordering Guide .......................................................... 17

11/03—Rev. 0 to Rev. A

Changes to Electrical Characteristics ............................................ 3

11/03—Revision 0: Initial Version

Theory of Operation ...................................................................... 13

Programming the Variable Resistor and Voltage ................... 13

Programming the Potentiometer Divider ............................... 14

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

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

Power-Up Sequence ................................................................... 14

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

Constant Bias to Retain Resistance Setting............................. 15

Evaluation Board ........................................................................ 15

SPI Interface .................................................................................... 16

SPI-Compatible, 3-Wire Serial Bus.......................................... 16

Outline Dimensions ....................................................................... 17

Ordering Guide .......................................................................... 17

Automotive Products ................................................................. 17

Rev. C | Page 2 of 20

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