Datasheet

AD9742 Data Sheet
Rev. C | Page 2 of 32
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
Dynamic Specifications ............................................................... 4
Digital Specifications ................................................................... 5
Absolute Maximum Ratings ............................................................ 6
Thermal Resistance ...................................................................... 6
ESD Caution .................................................................................. 6
Pin Configurations and Function Descriptions ........................... 7
Typical Performance Characteristics ............................................. 8
Terminology .................................................................................... 11
Functional Description .................................................................. 12
Reference Operation .................................................................. 12
Reference Control Amplifier .................................................... 13
DAC Transfer Function ............................................................. 13
Analog Outputs .......................................................................... 13
Digital Inputs .............................................................................. 14
Clock Input.................................................................................. 14
DAC Timing ................................................................................ 15
Power Dissipation....................................................................... 15
Applying the AD9742 ................................................................ 16
Differential Coupling Using a Transformer ............................... 16
Differential Coupling Using an Op Amp ................................ 16
Single-Ended, Unbuffered Voltage Output ............................. 17
Single-Ended, Buffered Voltage Output Configuration ........ 17
Power and Grounding Considerations, Power Supply
Rejection ...................................................................................... 17
Evaluation Board ............................................................................ 19
General Description ................................................................... 19
Outline Dimensions ....................................................................... 29
Ordering Guide .......................................................................... 30
REVISION HISTORY
2/13—Rev. B to Rev. C
Updated Format .................................................................. Universal
Changes to Figure 4 and Table 6 ..................................................... 7
Moved Terminology Section ......................................................... 11
Updated Outline Dimensions ....................................................... 29
Changes to Ordering Guide .......................................................... 30
6/04—Rev. A to Rev. B
Changes to the Title, General Description, and Product
Highlights .......................................................................................... 1
Changes to Dynamic Specifications ............................................... 4
Changes to Figure 6 and Figure 10 ................................................. 9
Changes to Figure 12 to Figure 15 ................................................ 10
Changes to the Functional Description Section ......................... 12
Changes to the Digital Inputs Section ......................................... 14
Changes to Figure 29 ...................................................................... 15
Changes to Figure 30 ...................................................................... 16
5/03—Rev. 0 to Rev. A
Added 32-Lead LFCSP Package ....................................... Universal
Edits to Features and Product Highlights ...................................... 1
Edits to DC Specifications ................................................................ 2
Edits to Dynamic Specifications ...................................................... 3
Edits to Digital Specifications .......................................................... 4
Edits to Absolute Maximum Ratings, Thermal Characteristics,
and Ordering Guide .......................................................................... 5
Edits to Pin Configuration and Pin Function Descriptions ........ 6
Edits to Figure 2 ................................................................................. 7
Replaced TPCs 1, 4, 7, and 8 ............................................................ 8
Edits to Figure 3 and Functional Description Section .............. 10
Added Clock Input Section and Figure 7 .................................... 12
Edits to DAC Timing Section ....................................................... 12
Edits to Sleep Mode Operation Section and Power Dissipation
Section .............................................................................................. 13
Renumbered Figure 8 to Figure 26............................................... 13
Added Figure 11 ............................................................................. 13
Added Figure 27 to Figure 35 ....................................................... 21
Updated Outline Dimensions ....................................................... 26
5/02—Revision 0: Initial Version