AD8295

Rev. 0 | Page 2 of 2

8

TABLE OF CONTENTS

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

 

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

 

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

 

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

 

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

 

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

 

Instrumentation Amplifier Specifications, Single-Ended and

Differential Output Configurations ........................................... 3

 

Op Amp Specifications ................................................................ 5

 

Internal Resistor Network ........................................................... 6

 

Power and Temperature Specifications ..................................... 6

 

Absolute Maximum Ratings............................................................ 7

 

Thermal Characteristics .............................................................. 7

 

ESD Caution.................................................................................. 7

 

Pin Configuration and Function Descriptions............................. 8

 

Typical Performance Characteristics ............................................. 9

 

In-Amp .......................................................................................... 9

 

Op Amps...................................................................................... 16

 

System .......................................................................................... 18

 

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

 

Uncommitted Op Amps............................................................ 19

 

Instrumentation Amplifier........................................................ 19

 

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

 

Input Protection ......................................................................... 21

 

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

 

RF Interference ........................................................................... 21

 

Differential Output .................................................................... 22

 

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

 

Creating a Reference Voltage at Midscale ............................... 23

 

High Accuracy G = −1 Configuration with Low-Pass Filter .. 23

 

2-Pole Sallen-Key Filter ............................................................. 24

 

AC-Coupled Instrumentation Amplifier ................................ 24

 

Driving Differential ADCs........................................................ 25

 

Outline Dimensions ....................................................................... 26

 

Ordering Guide .......................................................................... 26

 

REVISION HISTORY

10/08—Revision 0: Initial Version