ADG2128 Data Sheet
Rev. D | Page 2 of 28
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
I
2
C Timing Specifications ............................................................ 7
Timing Diagram ........................................................................... 8
Absolute Maximum Ratings ............................................................ 9
ESD Caution .................................................................................. 9
Pin Configuration and Function Descriptions ........................... 10
Typical Performance Characteristics ........................................... 11
Test Circuits ..................................................................................... 15
Terminology .................................................................................... 17
Theory of Operation ...................................................................... 18
RESET
/Power-On Reset ............................................................ 18
Load Switch (LDSW) ................................................................. 18
Readback ..................................................................................... 18
Serial Interface ................................................................................ 19
High Speed I
2
C Interface ........................................................... 19
Serial Bus Address ...................................................................... 19
Writing to the ADG2128 ............................................................... 20
Input Shift Register .................................................................... 20
Write Operation.......................................................................... 22
Read Operation........................................................................... 22
Evaluation Board ............................................................................ 24
Using the ADG2128 Evaluation Board ................................... 24
Power Supply ............................................................................... 24
Schematics ................................................................................... 25
Outline Dimensions ....................................................................... 27
Ordering Guide .......................................................................... 27
Automotive Products ................................................................. 27
REVISION HISTORY
10/12—Rev. C to Rev. D
Changes to Ordering Guide .......................................................... 27
8/12—Rev. B to Rev. C
Updated Outline Dimensions (Changed CP-32-1 to CP-32-7) ...... 27
Changes to Ordering Guide .......................................................... 27
11/11—Rev. A to Rev. B
Changes to Features Section ........................................................... 1
Changes to Schematics Section .................................................... 25
Updated Outline Dimensions ....................................................... 27
Changes to the Ordering Guide .................................................... 27
Added Automotive Products Section........................................... 27
5/06—Rev. 0 to Rev. A
Added I
2
C Information ...................................................... Universal
Changes to Table 1 ............................................................................. 3
Changes to Table 2 ............................................................................. 5
Changes to Table 4 ............................................................................. 9
Changes to Figure 24 ...................................................................... 14
Changes to Terminology Section ................................................. 17
Changes to Figure 35 ...................................................................... 23
Changes to the Ordering Guide ................................................... 27
1/06—Revision 0: Initial Version
