Datasheet

AD5172/AD5173 Data Sheet
Rev. I | Page 2 of 28
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagrams ............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 3
Specifications ..................................................................................... 4
Electrical Characteristics: 2.5 kΩ ............................................... 4
Electrical Characteristics: 10 kΩ, 50 kΩ, and 100 kΩ ............. 5
Timing Characteristics ................................................................ 7
Absolute Maximum Ratings ............................................................ 8
ESD Caution .................................................................................. 8
Pin Configurations and Function Descriptions ........................... 9
Typical Performance Characteristics ........................................... 10
Test Circuits ..................................................................................... 15
Theory of Operation ...................................................................... 16
One-Time Programming (OTP) .............................................. 16
Programming the Variable Resistor and Voltage ................... 16
Programming the Potentiometer Divider ............................... 17
ESD Protection ........................................................................... 18
Terminal Voltage Operating Range ......................................... 18
Power-Up Sequence ................................................................... 18
Power Supply Considerations ................................................... 18
Layout Considerations ............................................................... 19
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C Interface .................................................................................... 20
Write Mode ................................................................................. 20
Read Mode .................................................................................. 20
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C Controller Programming .................................................... 21
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C-Compatible, 2-Wire Serial Bus .......................................... 22
Level Shifting for Different Voltage Operation ...................... 23
Outline Dimensions ....................................................................... 24
Ordering Guide .......................................................................... 25