AD9943/AD9944

Data Sheet

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

General Description......................................................................... 1

Functional Block Diagram .............................................................. 1

Revision History ............................................................................... 2

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

General Specifications ................................................................. 3

Digital Specifications ................................................................... 3

AD9943 System Specifications ................................................... 3

AD9944 System Specifications ................................................... 4

Timing Specifications .................................................................. 5

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

Thermal Resistance ...................................................................... 6

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

Pin Configuration and Function Descriptions............................. 7

Terminology ...................................................................................... 9

Equivalent Input Circuits .............................................................. 10

Typical Performance Characteristics ........................................... 11

Internal Register Map .................................................................... 12

Serial Interface ................................................................................ 13

Circuit Description and Operation.............................................. 14

DC Restore .................................................................................. 14

Correlated Double Sampler ...................................................... 14

Optical Black Clamp .................................................................. 14

A/D Converter............................................................................ 15

Variable Gain Amplifier ............................................................ 15

CCD Mode Timing ........................................................................ 16

Applications Information .............................................................. 17

Internal Power-On Reset Circuitry.......................................... 18

Grounding and Decoupling Recommendations.................... 18

Outline Dimensions....................................................................... 19

Ordering Guide............................................................................... 19

REVISION HISTORY

3/14—Rev. B to Rev. C

Added Exposed Pad Notation, Figure 2 and Table 6 ................... 7

Added Exposed Pad Notation, Figure 3 and Table 7 ................... 8

Changes to Figure 17...................................................................... 17

Changes to Figure 18...................................................................... 18

Updated Outline Dimensions....................................................... 19

Changes to Ordering Guide .......................................................... 19

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

Rev. C | Page 2 of 20