ADA4932-1/ADA4932-2

Rev. A | Page 2 of 28

TABLE OF CONTENTS

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

 

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

 

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

 

Functional Block Diagrams............................................................. 1

 

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

 

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

 

±5 V Operation............................................................................. 3

 

5 V Operation ............................................................................... 5

 

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

 

Thermal Resistance ...................................................................... 7

 

Maximum Power Dissipation ..................................................... 7

 

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

 

Pin Configurations and Function Descriptions ........................... 8

 

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

 

Test Circuits..................................................................................... 17

 

Terminology .................................................................................... 18

 

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

 

Applications Information .............................................................. 20

 

Analyzing an Application Circuit ............................................ 20

 

Setting the Closed-Loop Gain .................................................. 20

 

Estimating the Output Noise Voltage ...................................... 20

 

Impact of Mismatches in the Feedback Networks................. 21

 

Calculating the Input Impedance for an Application

Circuit .......................................................................................... 21

 

Input Common-Mode Voltage Range ..................................... 23

 

Input and Output Capacitive AC Coupling............................ 23

 

Setting the Output Common-Mode Voltage .......................... 23

 

Layout, Grounding, and Bypassing.............................................. 24

 

High Performance ADC Driving ................................................. 25

 

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

 

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

 

REVISION HISTORY

8/09—Rev. 0 to Rev. A

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

Changes to Figure 11........................................................................ 9

Changes to Figure 43 and Figure 45............................................. 15

Changes to Figure 52, Figure 53, and Figure 54 ......................... 17

10/08—Revision 0: Initial Version