Datasheet
AD9748 Data Sheet
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
Dynamic Specifications ............................................................... 4
Digital Specifications ................................................................... 5
Absolute Maximum Ratings ............................................................ 6
Thermal Characteristics .............................................................. 6
ESD Caution .................................................................................. 6
Pin Configuration and Function Descriptions ............................. 7
Termi nology ...................................................................................... 8
Typical Performance Characteristics ............................................. 9
Functional Description .................................................................. 11
Reference Operation .................................................................. 11
Reference Control Amplifier .................................................... 11
DAC Transfer Function ............................................................. 12
Analog Outputs .......................................................................... 12
Digital Inputs .............................................................................. 13
Clock Input .................................................................................. 13
DAC Timing ................................................................................ 14
Power Dissipation....................................................................... 14
Applying the AD9748 ................................................................ 15
Differential Coupling Using a Transformer ............................... 15
Differential Coupling Using an Op Amp ................................ 16
Single-Ended, Unbuffered Voltage Output ............................. 16
Single-Ended, Buffered Voltage Output Configuration ........ 16
Power and Grounding Considerations, Power Supply
Rejection ...................................................................................... 17
Evaluation Board ............................................................................ 18
General Description ................................................................... 18
Outline Dimensions ....................................................................... 24
Ordering Guide .......................................................................... 24
REVISION HISTORY
3/13—Rev. A to Rev. B
Changed CP-32-2 to CP-32-7 ........................................... Universal
Changes to Figure 3 and Table 5 ..................................................... 7
Changes to Ordering Guide .......................................................... 24
12/05—Rev. 0 to Rev. A
Updated Format .................................................................. Universal
Changes to General Description and Product Highlights .......... 1
Changes to Table 1 ............................................................................ 3
Changes to Table 2 ............................................................................ 4
Changes to Table 4 ............................................................................ 6
Inserted Figure 7; Renumbered Sequentially ................................ 9
Changes to Figure 8 and Figure 9 ................................................... 9
Changes to Functional Description, Reference Operation, and
Reference Control Amplifier Sections ......................................... 11
Inserted Figure 16; Renumbered Sequentially ........................... 11
Changes to DAC Transfer Function Section............................... 12
Changes to Digital Inputs Section ................................................ 13
Changes to Figure 22, Figure 23, and Figure 24 ......................... 14
Changes to Figure 25 ...................................................................... 15
Changes to Figure 26, Figure 27, Figure 28, and Figure 29....... 16
Updated Outline Dimensions ....................................................... 24
Changes to Ordering Guide .......................................................... 24
2/03—Revision 0: Initial Version