AD8290

Rev. B | Page 2 of 20

TABLE OF CONTENTS

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

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

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

Functional Block Diagram .............................................................. 1

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

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

Absolute Maximum Ratings............................................................ 5

Thermal Resistance ...................................................................... 5

ESD Caution.................................................................................. 5

Pin Configuration and Function Descriptions............................. 6

Typical Performance Characteristics ............................................. 7

Theory of Operation ...................................................................... 14

Amplifier...................................................................................... 14

High Power Supply Rejection (PSR) and Common-Mode

Rejection (CMR) ........................................................................ 14

1/f Noise Correction .................................................................. 14

Current Source............................................................................ 15

Applications Information .............................................................. 16

Typical Connections .................................................................. 16

Current Excitation...................................................................... 16

Enable/Disable Function ........................................................... 16

Output Filtering.......................................................................... 16

Clock Feedthrough..................................................................... 16

Maximizing Performance Through Proper Layout ............... 17

Power Supply Bypassing ............................................................ 17

Dual-Supply Operation ............................................................. 17

Pressure Sensor Bridge Application......................................... 18

Temperature Sensor Application.............................................. 19

ADC/Microcontroller................................................................ 19

Outline Dimensions ....................................................................... 20

Ordering Guide .......................................................................... 20

REVISION HISTORY

2/08—Rev. SpA to Rev. B

Changes to Features Section............................................................ 1

Changes to Amplifier Section and Figure 43 .............................. 14

Changes to Current Source Section ............................................. 15

Changes to Current Excitation Section, Output Filtering

Section, Clock Feedthrough Section, and Figure 45.................. 16

Changes to Figure 46...................................................................... 17

8/07—Revision SpA

7/07—Revision 0: Initial Version