AD7452

Data Sheet

Rev. C | Page 2 of 24

TABLE OF CONTENTS

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

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

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

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

Product Highlights ........................................................................... 1

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

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

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

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

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

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

Terminology ...................................................................................... 8

Typical Performance Characteristics ........................................... 10

Circuit Information ........................................................................ 13

Converter Operation.................................................................. 13

ADC Transfer Function............................................................. 13

Typical Connection Diagram ................................................... 14

Analog Input ............................................................................... 14

Driving Differential Inputs ....................................................... 16

Digital Inputs .............................................................................. 18

Reference ..................................................................................... 18

Single-Ended Operation............................................................ 18

Serial Interface ............................................................................ 19

Modes of Operation ....................................................................... 20

Normal Mode.............................................................................. 20

Power-Down Mode .................................................................... 20

Power-Up Time .......................................................................... 21

Power vs. Throughput Rate....................................................... 22

Application Hints ....................................................................... 22

Evaluating the AD7452’s Performance.................................... 23

Outline Dimensions ....................................................................... 24

Ordering Guide .......................................................................... 24

REVISION HISTORY

7/15—Rev. B to Rev. C

Changes to Figure 29...................................................................... 16

Changes to Power vs. Throughput Rate Section ........................ 22

Deleted Microprocessor and DSP Interfacing Section and

AD7452 to ADSP-21xx Section .................................................... 22

Deleted Figure 40, Figure 41, and Figure 42; Renumbered

Sequentially ..................................................................................... 23

Deleted AD7452 to TMS320C5x/C54x Section and AD7452 to

DSP56xxx Section........................................................................... 23

Updated Outline Dimensions ....................................................... 24

Changes to Ordering Guide .......................................................... 24

2/04—Rev. A to Rev. B

Added Patent Note ............................................................................1

2/04—Rev. 0 to Rev. A

Updated Formatting...........................................................Universal

Changes to Applications section .....................................................1

Changes to General Description .....................................................1

Changes to Specifications.................................................................4

Changes to Timing Specifications...................................................5

Changes to Timing Example......................................................... 19

9/03—Revision 0: Initial Version