Datasheet

AD5175
Rev. A | Page 2 of 20
TABLE OF CONTENTS
Features .............................................................................................. 1
Applicat ions ....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Electrical Characteristics ............................................................. 3
Interface Timing Specifications .................................................. 4
Absolute Maximum Ratings ............................................................ 6
Thermal Resistance ...................................................................... 6
ESD Caution .................................................................................. 6
Pin Configuration and Function Descriptions ............................. 7
Typical Performance Characteristics ............................................. 8
Test Circuits ..................................................................................... 11
Theory of Operation ...................................................................... 12
Serial Data Interface ................................................................... 12
Shift Register ............................................................................... 12
Write Operation.......................................................................... 13
Read Operation........................................................................... 15
RDAC Register ............................................................................ 16
50-TP Memory Block ................................................................ 16
Write Protection ......................................................................... 16
50-TP Memory Write-Acknowledge Polling .......................... 18
Reset ............................................................................................. 18
Shutdown Mode ......................................................................... 18
RDAC Architecture .................................................................... 18
Programming the Variable Resistor ......................................... 18
EXT_CAP Capacitor .................................................................. 19
Terminal Voltage Operating Range ......................................... 19
Power-Up Sequence ................................................................... 19
Outline Dimensions ....................................................................... 20
Ordering Guide .......................................................................... 20
REVISION HISTORY
7/10—Rev. 0 to Rev. A
Changes to Ordering Guide .......................................................... 20
3/10—Revision 0: Initial Version