AD9642

Rev. 0 | Page 2 of 28

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

7/11—Revision 0: Initial Version