AD8426

Rev. 0 | Page 2 of 28

TABLE OF CONTENTS

Features .............................................................................................. 1

 

Applications....................................................................................... 1

 

Connection Diagram ....................................................................... 1

 

General Description ......................................................................... 1

 

Revision History ............................................................................... 2

 

Specifications..................................................................................... 3

 

Dual-Supply Operation ............................................................... 3

 

Single-Supply Operation ............................................................. 6

 

Absolute Maximum Ratings............................................................ 9

 

Thermal Resistance ...................................................................... 9

 

ESD Caution.................................................................................. 9

 

Pin Configuration and Function Descriptions........................... 10

 

Typical Performance Characteristics ........................................... 11

 

Theory of Operation ...................................................................... 21

 

Architecture................................................................................. 21

 

Gain Selection............................................................................. 21

 

Reference Terminal .................................................................... 22

 

Input Voltage Range................................................................... 22

 

Layout .......................................................................................... 23

 

Input Bias Current Return Path ............................................... 24

 

Input Protection ......................................................................... 24

 

Radio Frequency Interference (RFI)........................................ 24

 

Applications Information .............................................................. 25

 

Precision Strain Gage................................................................. 25

 

Differential Drive ....................................................................... 25

 

Driving a Cable........................................................................... 26

 

Driving an ADC ......................................................................... 27

 

Outline Dimensions ....................................................................... 28

 

Ordering Guide .......................................................................... 28

 

REVISION HISTORY

7/11—Revision 0: Initial Version