AD9726

Rev. B | Page 2 of 24

TABLE OF CONTENTS

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

 

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

 

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

 

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

 

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

 

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

 

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

 

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

 

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

 

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

 

Timing Specifications .................................................................. 5

 

Timing Diagrams.......................................................................... 6

 

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

 

Thermal Resistance ...................................................................... 8

 

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

 

Pin Configuration and Function Descriptions............................. 9

 

Terminology .................................................................................... 11

 

Typical Performance Characteristics ........................................... 12

 

Serial Port Interface........................................................................ 15

 

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

 

DAC Clock and Data Clock Output ........................................ 17

 

Data Clock Input ........................................................................ 17

 

Data Synchronization Circuitry ............................................... 18

 

Analog Output ............................................................................ 18

 

Internal Reference and Full-Scale Output .............................. 19

 

Reset ............................................................................................. 19

 

Serial Port Interface ................................................................... 19

 

SPI Pin Description.................................................................... 20

 

Calibration................................................................................... 20

 

Sync Logic Operation and Programming ............................... 22

 

Outline Dimensions ....................................................................... 24

 

Ordering Guide .......................................................................... 24

 

REVISION HISTORY

2/10—Rev. A to Rev. B

Changes to Table 4............................................................................ 5

Added Figure 4 and Figure 5, Renumbered Sequentially ........... 6

Changes to Figure 5 and Table 7..................................................... 9

Changes to Table 9.......................................................................... 16

Added Data Synchronization Circuitry Bypass Section............ 18

Changes to Ordering Guide .......................................................... 24

11/05—Rev. 0 to Rev. A

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

Changes to Table 3 and Table 4 .......................................................5

Changes to the Terminology Section........................................... 10

Changes to the Driving the DAC Clock Inputs Section............ 15

Changes to the Reset and Serial Port Interface Sections........... 17

Updated Outline Dimensions....................................................... 22

Changes to the Ordering Guide ................................................... 22

7/05—Revision 0: Initial Version