Data Sheet

AD5172/AD5173

TABLE OF CONTENTS

analog.com

Rev. J | 2 of 22

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

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

Functional Block Diagrams....................................1

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

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

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

Electrical Characteristics: 10 kΩ and 100 kΩ ....4

Timing Characteristics........................................6

Absolute Maximum Ratings...................................7

ESD Caution.......................................................7

Pin Configurations and Function Descriptions.......8

Typical Performance Characteristics..................... 9

Test Circuits......................................................... 13

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

One-Time Programming (OTP)........................ 14

Programming the Variable Resistor and

Voltage........................................................... 14

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

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

Terminal Voltage Operating Range.................. 16

Power-Up Sequence........................................ 16

Power Supply Considerations.......................... 16

Layout Considerations......................................16

I2C Interface.........................................................17

Write Mode....................................................... 17

Read Mode.......................................................17

SDA Bits Descriptions...................................... 17

I2C Controller Programming............................. 17

I2C-Compatible, 2-Wire Serial Bus...................19

Level Shifting for Different Voltage Operation.. 20

Outline Dimensions............................................. 21

Ordering Guide.................................................21

RAB Options......................................................21

Evaluation Boards............................................ 22

REVISION HISTORY

1/2022—Rev. I to Rev. J

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

Changes to Applications Section..................................................................................................................... 1

Changes to OTP Supply Current Parameter and Power Supply Range Parameter, Table 1.......................... 3

Changed Electrical Characteristics 10 kΩ, 50 kΩ, and 100 kΩ Section to Electrical Characteristics: 10

kΩ and 100 kΩ Section..................................................................................................................................4

Changes to OTP Supply Current Parameter, Bandwidth, −3 dB Parameter, and Power Supply Range

Parameter, Table 2.........................................................................................................................................4

Deleted Figure 21; Renumbered Sequentially................................................................................................. 9

Changes to Figure 22.....................................................................................................................................11

Changes to Rheostat Operation Section, Table 8, and Table 9..................................................................... 14

Moved Figure 46............................................................................................................................................ 16

Moved Table 14..............................................................................................................................................17

Change to Level Shifting for Different Voltage Operation Section................................................................. 20

Changes to Ordering Guide........................................................................................................................... 21