
AD9943/AD9944
TABLE OF CONTENTS
AD9943/AD9944 Specifications.....................................................3
Rev. B | Page 2 of 20
General Specifications .................................................................3
Digital Specifications ...................................................................3
AD9943 System Specifications .......................................................4
AD9944 System Specifications .......................................................5
Timing Specifications.......................................................................6
Absolute Maximum Ratings............................................................7
Thermal Characteristics..............................................................7
ESD Caution..................................................................................7
AD9943 Pin Configuration and Function Descriptions.............8
AD9944 Pin Configuration and Function Descriptions.............9
Terminology....................................................................................10
Equivalent Input Circuits ..............................................................11
Typical Performance Characteristics...........................................12
Internal Register Map .................................................................... 13
Serial Interface................................................................................ 14
Circuit Description and Operation.............................................. 15
DC Restore.................................................................................. 15
Correlated Double Sampler ...................................................... 15
Optical Black Clamp.................................................................. 15
A/D Converter............................................................................ 16
Variable Gain Amplifier ............................................................ 16
CCD Mode Timing........................................................................ 17
Applications Information.............................................................. 18
Internal Power-On Reset Circuitry.......................................... 19
Grounding and Decoupling Recommendations.................... 19
Outline Dimensions....................................................................... 20
Ordering Guide .......................................................................... 20
REVISION HISTORY
5/04—Data Sheet Changed from Rev. A to Rev. B
Updated Format..................................................................Universal
Updated Outline Dimensions.......................................................20
Changes to Ordering Guide..........................................................20
5/03—Data Sheet changed from Rev. 0 to Rev. A
Added AD9944....................................................................Universal
Changes to Features Section............................................................ 1
Updated Ordering Guide................................................................. 5
Replaced TPC 3................................................................................. 9
Added Figure 12..............................................................................15
Updated Outline Dimensions.......................................................16