AD7453

Rev. B | Page 2 of 20

TABLE OF CONTENTS

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

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

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

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

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

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

AD7453–Typical Performance Characteristics ............................ 9

Circuit Information ........................................................................ 11

Converter Operation.................................................................. 11

ADC Transfer Function............................................................. 11

Typical Connection Diagram ................................................... 12

The Analog Input........................................................................ 12

Digital Inputs .............................................................................. 13

Reference ..................................................................................... 13

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

Modes of Operation ....................................................................... 15

Normal Mode.............................................................................. 15

Power-Down Mode .................................................................... 15

Power-Up Time .......................................................................... 16

Power vs. Throughput Rate....................................................... 17

Microprocessor and DSP Interfacing ...................................... 17

Application Hints ....................................................................... 19

Evaluating the AD7453’s Performance .................................... 19

Outline Dimensions ....................................................................... 20

Ordering Guide .......................................................................... 20

REVISION HISTORY

2/04—Data Sheet changed from Rev. A to Rev. B

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

1/04—Data Sheet changed from Rev. 0 to Rev. A

Updated Format..............................................................Universal

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

Changes to Specifications ............................................................ 3

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

Changes to Table 4........................................................................ 7

Replaced Figures 11, 12, 13........................................................ 10

Changes to Typical Connection Diagram section ................. 12

Change to Figure 18 ................................................................... 12

Changes to Reference Section................................................... 13

Changes to Timing Example 1.................................................. 14

8/03—Rev. 0: Initial Version