AD5259
TABLE OF CONTENTS
Specifications..................................................................................... 3
I2C-Compatible Format ................................................................. 16
Generic Interface........................................................................ 16
Write Modes ................................................................................ 16
Read Modes................................................................................. 17
Store/Restore Modes .................................................................. 17
Tolerance Readback Modes ...................................................... 18
ESD Protection of Digital Pins and Resistor Terminals........ 19
Power-Up Sequence ................................................................... 19
Layout and Power Supply Bypassing ....................................... 19
Multiple Devices on One Bus ................................................... 19
Evaluation Board........................................................................ 19
Display Applications ...................................................................... 20
Circuitry ...................................................................................... 20
Outline Dimensions....................................................................... 21
Ordering Guide .......................................................................... 21
Electrical Characteristics............................................................. 3
Timing Characteristics ................................................................ 5
Absolute Maximum Ratings............................................................ 6
ESD Caution.................................................................................. 6
Pin Configuration and Function Descriptions............................. 7
Typical Performance Characteristics ............................................. 8
Test Circuits ..................................................................................... 13
Theory of Operation ...................................................................... 14
Programming the Variable Resistor......................................... 14
Programming the Potentiometer Divider............................... 14
I2C-Compatible Interface............................................................... 15
Writing ......................................................................................... 15
Storing/Restoring ....................................................................... 15
Reading ........................................................................................ 15
REVISION HISTORY
7/05 — Rev. 0 to Rev. A
Added 10-Lead LFCSP.......................................................Universal
Changes to Features Section and
General Description Section........................................................... 1
Changes to Table 1............................................................................ 3
Changes to Table 2 and Added Figure 4........................................ 5
Changes to Table 4............................................................................ 7
Changes to Figure 27 Caption....................................................... 11
Changes to Theory of Operation Section.................................... 14
Changes to I2C-Compatible Interface Section............................ 15
Changes to Table 5.......................................................................... 16
Changes to Multiple Devices on One Bus Section..................... 19
Updated Figure 49 Caption........................................................... 21
Changes to Ordering Guide .......................................................... 21
2/05 — Revision 0: Initial Version
Rev. A | Page 2 of 24
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