ADAS3022

Data Sheet

Rev. A | Page 2 of 40

TABLE OF CONTENTS

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

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

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

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

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

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

Timing Specifications .................................................................. 7

Absolute Maximum Ratings............................................................ 9

ESD Caution.................................................................................. 9

Pin Configuration and Function Descriptions........................... 10

Typical Performance Characteristics ........................................... 12

Terminology .................................................................................... 20

Theory of Operation ...................................................................... 22

Overview...................................................................................... 22

ADAS3022 Operation................................................................ 22

Transfer Function ....................................................................... 23

Typical Application Connection Diagram.............................. 24

Analog Inputs.............................................................................. 25

Voltage Reference Output/Input .............................................. 28

Power Supply............................................................................... 29

Conversion Modes ..................................................................... 30

Digital Interface .............................................................................. 31

Conversion Control ................................................................... 31

Reset and Power-Down (PD) Inputs ....................................... 32

Serial Data Interface................................................................... 32

General Considerations............................................................. 33

General Timing........................................................................... 34

Configuration Register .............................................................. 36

Channel Sequencer Details ....................................................... 37

Outline Dimensions....................................................................... 39

Ordering Guide .......................................................................... 39

REVISION HISTORY

1/13—Rev. 0 to Rev. A

Conditions/Comments, Table 2...................................................... 3

Changes to REF1 and REF2 Description..................................... 11

Added Figure 25 to Figure 28; Renumbered Sequentially ........ 15

Changes to Figure 29...................................................................... 15

Added Figure 30.............................................................................. 16

Changes to Figure 33, Figure 34, and Figure 35 ......................... 16

Changes to Figure 36 and Figure 37............................................. 17

Changes to Figure 50...................................................................... 19

Changes to Figure 54...................................................................... 24

Changes to Figure 56...................................................................... 25

Changes to Figure 57, Figure 58, Figure 59, and Figure 60....... 26

Changes to Voltage Reference Output/Input Section, Figure 62,

and Figure 63................................................................................... 28

Changes to Core Supplies Section................................................ 29

11/12—Revision 0: Initial Version