ADA4930-1/ADA4930-2

Data Sheet

Rev. D | Page 2 of 25

TABLE OF CONTENTS

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

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

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

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

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

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

3.3 V Operation......................................................................... 3

3.3 V VOCM to VO, cm Performance............................................. 4

3.3 V General Performance....................................................... 4

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

5 V VOCM to VO, cm Performance................................................ 6

5 V General Performance.......................................................... 6

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

Operational Description............................................................. 16

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

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

Input Common-Mode Voltage Range.................................... 18

Minimum RG Value.................................................................. 19

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

Calculating the Input Impedance foran Application Circuit

................................................................................................... 19

Layout, Grounding, and Bypassing............................................ 23

High Performance ADC Driving ............................................... 24

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

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

REVISIONHISTORY

11/2017—Rev. C to Rev. D

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

Changes to Ordering Guide.........................................................25

5/2017—Rev. B to Rev. C

Changes to Figure 5andFigure 6.....................................................8

Changesto Input Common-ModeAdjustment withDCBiased

Source Section................................................................................21

Changesto HighPerformanceADCDrivingSection

and Figure 60..................................................................................24

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

Changes to Ordering Guide.........................................................25

1/2015—Rev. A to Rev. B

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

Changes to Ordering Guide.........................................................25

10/2010—Rev. 0 to Rev. A

Changes to General Description Section......................................1

10/2010—Revision0: Initial Version