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

I2C 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 I2C 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

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