AD5160 查看數據表（PDF） - Analog Devices

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AD5160

256-Position SPI-Compatible Digital Potentiometer

Analog Devices 

AD5160

TABLE OF CONTENTS

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

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

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

Pin Configuration............................................................................. 1

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

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

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

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

10 kΩ, 50 kΩ, 100 kΩ Versions .................................................. 4

Timing Characteristics—All Versions ....................................... 5

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

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

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

REVISION HISTORY

11/14—Rev. B to Rev. C

Changes to Ordering Guide .......................................................... 16

5/09—Rev. A to Rev. B

Changes to Ordering Guide .......................................................... 16

1/09—Rev. 0 to Rev. A

Deleted Shutdown Supply Current Parameter and

Endnote 7, Table 1 ............................................................................ 3

Changes to Resistor Noise Voltage Density Parameter,

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

Deleted Shutdown Supply Current Parameter and

Endnote 7, Table 2 ............................................................................ 4

Changes to Resistor Noise Voltage Density Parameter,

Table 2 ................................................................................................ 4

Added Endnote to Table 3 ............................................................... 5

Changes to Table 4............................................................................ 6

Changes to the Rheostat Operation Section ............................... 14

Deleted Terminal Voltage Operating Range Section and

Figure 41, Renumbered Figures Sequentially ............................. 13

Changes to Figure 40 and Figure 41............................................. 15

Changes to Ordering Guide .......................................................... 16

5/03—Revision 0: Initial Version

Data Sheet

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

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

SPI Interface .................................................................................... 13

Theory of Operation ...................................................................... 14

Programming the Variable Resistor......................................... 14

Programming the Potentiometer Divider ............................... 15

SPI-Compatible 3-Wire Serial Bus........................................... 15

ESD Protection ........................................................................... 15

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

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

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

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

Rev. C | Page 2 of 16

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