AD9642

Data Sheet

TABLE OF CONTENTS

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

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

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

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

Product Highlights ........................................................................... 1

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

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

ADC DC Specifications............................................................... 3

ADC AC Specifications ............................................................... 4

Digital Specifications ................................................................... 5

Switching Specifications .............................................................. 6

Timing Specifications .................................................................. 7

Absolute Maximum Ratings............................................................ 8

Thermal Characteristics .............................................................. 8

ESD Caution.................................................................................. 8

Pin Configurations and Function Descriptions ........................... 9

Typical Performance Characteristics ........................................... 10

Equivalent Circuits......................................................................... 16

Theory of Operation ...................................................................... 17

ADC Architecture ...................................................................... 17

Analog Input Considerations ................................................... 17

Voltage Reference ....................................................................... 19

Clock Input Considerations...................................................... 19

Power Dissipation and Standby Mode .................................... 20

Digital Outputs ........................................................................... 20

Serial Port Interface (SPI).............................................................. 22

Configuration Using the SPI..................................................... 22

Hardware Interface..................................................................... 22

SPI Accessible Features.............................................................. 23

Memory Map .................................................................................. 24

Reading the Memory Map Register Table............................... 24

Memory Map Register Table..................................................... 25

Applications Information .............................................................. 27

Design Guidelines ...................................................................... 27

Outline Dimensions....................................................................... 28

Ordering Guide .......................................................................... 28

REVISION HISTORY

1/15—Rev. A to Rev. B

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

Changes to Reading the Memory Map Register Table

Section.............................................................................................. 24

Changes to Table 13........................................................................ 26

7/14—Rev. 0 to Rev. A

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

Changes to Full Power Bandwidth Parameter, Table 2................ 5

Deleted Noise Bandwidth Parameter, Table 2............................... 5

7/11—Revision 0: Initial Version

Rev. B | Page 2 of 28