AD8422

Data Sheet

Rev. 0 | Page 2 of 24

TABLE OF CONTENTS

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

 

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

 

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

 

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

 

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

 

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

 

SOIC Package................................................................................ 3

 

MSOP Package.............................................................................. 5

 

Absolute Maximum Ratings............................................................ 8

 

Thermal Resistance ...................................................................... 8

 

ESD Caution.................................................................................. 8

 

Pin Configuration and Function Descriptions............................. 9

 

Typical Performance Characteristics ........................................... 10

 

Theory of Operation ...................................................................... 19

 

Architecture ................................................................................ 19

 

Gain Selection............................................................................. 19

 

Reference Terminal .................................................................... 20

 

Input Voltage Range................................................................... 20

 

Layout .......................................................................................... 20

 

Input Bias Current Return Path ............................................... 21

 

Input Voltages Beyond the Supply Rails.................................. 21

 

Radio Frequency Interference (RFI)........................................ 22

 

Applications Information .............................................................. 23

 

Precision Bridge Conditioning................................................. 23

 

Process Control Analog Input .................................................. 23

 

Outline Dimensions ....................................................................... 24

 

Ordering Guide .......................................................................... 24

 

REVISION HISTORY

5/13—Revision 0: Initial Version