ADA4927-1/ADA4927-2

Rev. 0 | Page 2 of 24

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..................................................................................... 15

Theory of Operation ...................................................................... 16

Definition of Terms.................................................................... 16

Applications Information .............................................................. 17

Analyzing an Application Circuit ............................................ 17

Setting the Closed-Loop Gain .................................................. 17

Estimating the Output Noise Voltage ...................................... 17

Impact of Mismatches in the Feedback Networks................. 18

Calculating the Input Impedance for

an Application Circuit ............................................................... 18

Input Common-Mode Voltage Range ..................................... 20

Input and Output Capacitive AC Coupling............................ 20

Setting the Output Common-Mode Voltage .......................... 20

Power Down................................................................................ 21

Layout, Grounding, and Bypassing.............................................. 22

High Performance ADC Driving ................................................. 23

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

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

REVISION HISTORY

10/08—Revision 0: Initial Version