Datasheet

AD5231 Data Sheet
Rev. D | Page 2 of 28
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Electrical Characteristics—10 kΩ, 50 kΩ, 100 kΩ Versions .. 3
Timing Characteristics—10 kΩ, 50 kΩ, 100 kΩ Versions ...... 5
Absolute Maximum Ratings ............................................................ 7
ESD Caution .................................................................................. 7
Pin Configuration and Function Descriptions ............................. 8
Typical Performance Characteristics ............................................. 9
Test Circuits ..................................................................................... 13
Theory of Operation ...................................................................... 14
Scratchpad and EEMEM Programming .................................. 14
Basic Operation .......................................................................... 14
EEMEM Protection .................................................................... 14
Digital Input/Output Configuration ........................................ 15
Serial Data Interface ................................................................... 15
Daisy-Chain Operation ............................................................. 15
Terminal Voltage Operation Range ......................................... 16
Power-Up Sequence ................................................................... 16
Latched Digital Outputs ............................................................ 16
Advanced Control Modes ......................................................... 18
RDAC Structure.......................................................................... 19
Programming the Variable Resistor ......................................... 19
Programming the Potentiometer Divider ............................... 20
Programming Examples ............................................................ 21
Flash/EEMEM Reliability .......................................................... 22
Applications ..................................................................................... 23
Bipolar Operation from Dual Supplies.................................... 23
High Voltage Operation ............................................................ 23
Bipolar Programmable Gain Amplifier ................................... 23
10-Bit Bipolar DAC .................................................................... 23
10-Bit Unipolar DAC ................................................................. 24
Programmable Voltage Source with Boosted Output ........... 24
Programmable Current Source ................................................ 24
Programmable Bidirectional Current Source ......................... 25
Resistance Scaling ...................................................................... 25
RDAC Circuit Simulation Model ............................................. 26
Outline Dimensions ....................................................................... 27
Ordering Guide .......................................................................... 27
REVISION HISTORY
3/13—Rev. C to Rev. D
Added t
WP
; Table 2 ............................................................................ 5
Changes to Ordering Guide .......................................................... 27
1/07—Rev. B to Rev. C
Updated Format .................................................................. Universal
Changes to Dynamic Characteristics Specifications ..................... 4
Changes to Table 2 Footnote ............................................................ 5
Changes to Table 3 ............................................................................. 7
Changes to Ordering Guide ........................................................... 27
9/04—Rev. A to Rev. B
Updated Format .................................................................. Universal
Changes to Table 20 ......................................................................... 23
Changes to Resistance Scaling Section ......................................... 25
Changes to Ordering Guide ........................................................... 27
5/04—Rev. 0 to Rev. A
Updated formatting ............................................................ Universal
Edits to Features, General Description, and Block Diagram ....... 1
Changes to Specifications ................................................................. 3
Replaced Timing Diagrams.............................................................. 6
Changes to Pin Function Descriptions ........................................... 8
Changes to Typical Performance Characteristics.......................... 9
Changes to Test Circuits ................................................................. 13
Edits to Theory of Operation ......................................................... 14
Edits to Applications ....................................................................... 23
Updated Outline Dimensions ........................................................ 27
12/01—Revision 0: Initial Version