Datasheet

AD9637 Data Sheet
Rev. A | Page 2 of 40
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
DC Specifications ......................................................................... 3
AC Specifications .......................................................................... 4
Digital Specifications ................................................................... 5
Switching Specifications .............................................................. 6
Timing Specifications .................................................................. 6
Absolute Maximum Ratings ............................................................ 8
Thermal Characteristics .............................................................. 8
ESD Caution .................................................................................. 8
Pin Configuration and Function Descriptions ............................. 9
Typical Performance Characteristics ........................................... 11
AD9637-80 .................................................................................. 11
AD9637-40 .................................................................................. 14
Equivalent Circuits ......................................................................... 17
Theory of Operation ...................................................................... 18
Analog Input Considerations .................................................... 18
Voltage Reference ....................................................................... 19
Clock Input Considerations ...................................................... 20
Power Dissipation and Power-Down Mode ........................... 22
Digital Outputs and Timing ..................................................... 23
Built-In Output Test Modes .......................................................... 27
Output Test Modes ..................................................................... 27
Serial Port Interface (SPI) .............................................................. 28
Configuration Using the SPI ..................................................... 28
Hardware Interface ..................................................................... 29
Configuration Without the SPI ................................................ 29
SPI Accessible Features .............................................................. 29
Memory Map .................................................................................. 30
Reading the Memory Map Register Table ............................... 30
Memory Map Register Table ..................................................... 31
Memory Map Register Descriptions ........................................ 34
Applications Information .............................................................. 36
Design Guidelines ...................................................................... 36
Power and Ground Recommendations ................................... 36
Clock Stability Considerations ................................................. 36
Exposed Pad Thermal Heat Slug Recommendations ............ 36
VCM ............................................................................................. 36
Reference Decoupling ................................................................ 36
SPI Port ........................................................................................ 36
Outline Dimensions ....................................................................... 37
Ordering Guide .......................................................................... 37
REVISION HISTORY
4/13—Rev. 0 to Rev. A
Added Common-Mode Range ....................................................... 3
Changes to AC Specifications Section ........................................... 4
Added Propagation Delay of 1.5 ns Min and 3.1 ns Max; Table 4 .. 6
Added CLK Divider = 8 to Figure 7, Figure 9, Figure 10, and
Figure 11 Captions .......................................................................... 11
Added CLK Divider = 8 to Figure 22, Figure 24, and Figure 25
Captions ........................................................................................... 14
Changes to Figure 36 and Figure 37 ............................................. 17
Changes to Figure 44 ...................................................................... 18
Changes to Figure 56 ...................................................................... 22
Changes to Digital Outputs and Timing Section ....................... 23
Changes to Channel Specific Registers Section .......................... 30
Changes to Register 0x21, Bit 3; Table 17 .................................... 33
Changes to Bits[6:4]—Input Clock Phase Adjust Section......... 35
Added Clock Stability Considerations Section ........................... 36
Updated Outline Dimensions ....................................................... 37
10/11—Revision 0: Initial Version