Datasheet

AD5174
Rev. B | Page 2 of 20
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 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
RDAC Register............................................................................ 12
50-TP Memory Block ................................................................ 12
Write Protection ......................................................................... 12
RDAC and 50-TP Read Operation .......................................... 13
Shutdown Mode ......................................................................... 14
Reset ............................................................................................. 14
SDO Pin and Daisy-Chain Operation..................................... 15
RDAC Architecture.................................................................... 16
Programming the Variable Resistor......................................... 16
EXT_CAP Capacitor.................................................................. 17
Terminal Voltage Operating Range ......................................... 17
Power-Up Sequence ................................................................... 17
Outline Dimensions....................................................................... 18
Ordering Guide .......................................................................... 18
REVISION HISTORY
12/10—Rev. A to Rev. B
Changes to SDO Pin Description................................................... 7
Changes to SDO Pin and Daisy-Chain Operation Section....... 15
7/10—Rev. 0 to Rev. A
Changes to Daisy-Chain Operation Section including Changing
Title to SDO Pin and Daisy-Chain Operation Section ............. 15
Added Table 11 ............................................................................... 15
Changes to Ordering Guide .......................................................... 18
3/10—Revision 0: Initial Version