ADA4937-1/ADA4937-2

Data Sheet

Rev. F | 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

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

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

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

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

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

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

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

Terminology .................................................................................... 17

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

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

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

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

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

Calculating the Input Impedance for an Application Circuit

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

Input Common-Mode Voltage Range in Single-Supply

Applications ................................................................................ 20

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

Power-Down Operation ............................................................ 20

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

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

3.3 V Operation .......................................................................... 25

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

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

REVISION HISTORY

6/2016—Rev. E to Rev. F

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

Changes to Ordering Guide .......................................................... 26

5/2015—Rev. D to Rev. E

Changes to Table 6............................................................................ 7

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

Changes to Ordering Guide .......................................................... 26

8/2013—Rev. C to Rev. D

Changes to Input Bias Current Parameter, Table 1 ...................... 3

Changes to Input Bias Current Parameter, Table 3 ...................... 5

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

3/2010—Rev. B to Rev. C

Changes to Table 2, Power Supply Parameter............................... 4

Changes to Table 4, Power Supply Parameter............................... 6

Changes to Figure 43...................................................................... 15

Added the Power-Down Operation Section............................... 20

10/2009—Rev. A to Rev. B

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

Changes to Table 1............................................................................ 3

Changes to Operating Temperature Range Parameter, Table 2.. 4

Changes to Table 3............................................................................ 5

Changes to Figure 4.......................................................................... 7

Changes to Figure 5 and Figure 6....................................................8

Added EP Row to Table 7 and EP Row to Table 8 ........................8

Added Figure 46, Figure 47, and Figure 48; Renumbered

Sequentially ..................................................................................... 15

Changes to Table 9.......................................................................... 18

Changes to Input Common-Mode Voltage Range in Single-

Supply Applications Section.......................................................... 20

Changes to Ordering Guide.......................................................... 26

11/2007—Rev. 0 to Rev. A

Added the ADA4937-2......................................................Universal

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

Changes to Specifications.................................................................3

Changes to Figure 4...........................................................................7

Changes to Typical Performance Characteristics..........................9

Inserted Figure 44........................................................................... 15

Added the Terminating a Single-Ended Input Section ............. 19

Changes to Table 10 and Table 11 ................................................ 21

Changes to Layout, Grounding, and Bypassing Section ........... 22

Inserted Figure 59, Figure 60, and Figure 61.............................. 22

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

Changes to Ordering Guide.......................................................... 26

5/2007—Revision 0: Initial Version