ADA4937-1

Rev. 0 | Page 2 of 28

TABLE OF CONTENTS

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

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

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

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

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

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

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

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

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

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

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

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

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

Test Circuits..................................................................................... 16

Operational Description................................................................ 17

Definition of Terms.................................................................... 17

Theory of Operation ...................................................................... 18

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

Setting the Closed-Loop Gain .................................................. 18

Estimating the Output Noise Voltage ...................................... 18

The Impact of Mismatches in the Feedback Networks ......... 19

Calculating the Input Impedance of an Application Circuit 19

Input Common-Mode Voltage Range in Single-Supply

Applications ................................................................................ 19

Setting the Output Common-Mode Voltage .......................... 19

Layout, Grounding, and Bypassing.............................................. 21

High Performance ADC Driving ................................................. 22

3.3 V Operation .......................................................................... 24

Outline Dimensions ....................................................................... 25

Ordering Guide .......................................................................... 25

REVISION HISTORY

5/07—Revision 0: Initial Version