AD9249

Data Sheet

Rev. 0 | Page 2 of 36

TABLE OF CONTENTS

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

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

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

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

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

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

Functional Block Diagram .............................................................. 3

Specifications..................................................................................... 4

DC Specifications ......................................................................... 4

AC Specifications.......................................................................... 5

Digital Specifications ................................................................... 6

Switching Specifications .............................................................. 7

Timing Specifications .................................................................. 9

Absolute Maximum Ratings.......................................................... 10

Thermal Characteristics ............................................................ 10

ESD Caution................................................................................ 10

Pin Configuration and Function Descriptions........................... 11

Typical Performance Characteristics ........................................... 13

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

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

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

Voltage Reference ....................................................................... 18

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

Power Dissipation and Power-Down Mode ........................... 21

Digital Outputs and Timing ..................................................... 21

Built-In Output Test Modes.......................................................... 25

Output Test Modes..................................................................... 25

Serial Port Interface (SPI).............................................................. 26

Configuration Using the SPI..................................................... 26

Hardware Interface..................................................................... 27

Configuration Without the SPI ................................................ 27

SPI Accessible Features.............................................................. 27

Memory Map .................................................................................. 28

Reading the Memory Map Register Table............................... 28

Memory Map Register Table..................................................... 29

Memory Map Register Descriptions........................................ 32

Applications Information .............................................................. 34

Design Guidelines ...................................................................... 34

Power and Ground Recommendations................................... 34

Board Layout Considerations................................................... 34

Clock Stability Considerations ................................................. 35

VCM............................................................................................. 35

Reference Decoupling................................................................ 35

SPI Port........................................................................................ 35

Outline Dimensions....................................................................... 36

Ordering Guide .......................................................................... 36

REVISION HISTORY

10/13—Revision 0: Initial Version