AD9744

Rev. B | Page 2 of 32

TABLE OF CONTENTS

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

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

Dynamic Specifications ............................................................... 4

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

Absolute Maximum Ratings............................................................ 6

Thermal Characteristics .............................................................. 6

ESD Caution.................................................................................. 6

Pin Configurations and Function Descriptions ........................... 7

Terminology ...................................................................................... 8

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

Functional Description .................................................................. 13

Reference Operation .................................................................. 13

Reference Control Amplifier .................................................... 13

DAC Transfer Function ............................................................. 14

Analog Outputs........................................................................... 14

Digital Inputs .............................................................................. 15

Clock Input.................................................................................. 15

DAC Timing................................................................................ 16

Power Dissipation....................................................................... 16

Applying the AD9744 ................................................................ 17

Differential Coupling Using a Transformer............................ 17

Differential Coupling Using an Op Amp ................................ 17

Single-Ended Unbuffered Voltage Output .............................. 18

Single-Ended, Buffered Voltage Output Configuration........ 18

Power and Grounding Considerations, Power Supply

Rejection ...................................................................................... 18

Evaluation Board ............................................................................ 20

General Description................................................................... 20

Outline Dimensions ....................................................................... 30

Ordering Guide........................................................................... 31

REVISION HISTORY

4/05—Rev. A to Rev. B

Updated Format..................................................................Universal

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

Changes to Product Highlights .......................................................1

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

Changes to Dynamic Specifications................................................4

Changes to Pin Function Description ............................................7

Changes to Figure 6 and Figure 9....................................................9

Inserted New Figure 10; Renumbered Sequentially .....................9

Changes to Figure 12, Figure 13, Figure 14, and Figure 15....... 10

Changes to Figure 22 Caption ...................................................... 11

Inserted New Figure 23; Renumbered Sequentially .................. 11

Changes to Functional Description ............................................. 13

Changes to Reference Operation Section.................................... 13

Added Figure 25; Renumbered Sequentially .............................. 13

Changes to Digital Inputs Section................................................ 15

Changes to Figure 31 and Figure 32............................................. 16

Updated Outline Dimensions....................................................... 30

Changes to Ordering Guide .......................................................... 31

5/03—Rev. 0 to Rev. A

Added 32-Lead LFCSP Package .......................................Universal

Edits to Features.................................................................................1

Edits to Product Highlights..............................................................1

Edits to DC Specifications................................................................2

Edits to Dynamic Specifications......................................................3

Edits to Digital Specifications..........................................................4

Edits to Absolute Maximum Ratings ..............................................5

Edits to Thermal Characteristics.....................................................5

Edits to Ordering Guide ...................................................................5

Edits to Pin Configuration ...............................................................6

Edits to Pin Function Descriptions.................................................6

Edits to Figure 2.................................................................................7

Replaced TPCs 1, 4, 7, and 8............................................................8

Edits to Figure 3.............................................................................. 10

Edits to Functional Description ................................................... 10

Added Clock Input Section........................................................... 12

Added Figure 7................................................................................ 12

Edits to DAC Timing Section ....................................................... 12

Edits to Sleep Mode Operation Section....................................... 13

Edits to Power Dissipation Section .............................................. 13

Renumbered Figures 8 to Figure 26............................................. 13

Added Figure 11 ............................................................................. 13

Added Figure 27 to Figure 35 ....................................................... 21

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