AD7457

Rev. A | 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

Typical Performance Characteristics ............................................. 8

Terminology .................................................................................... 10

Theory of Operation ...................................................................... 11

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

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

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

Typical Connection Diagram ................................................... 11

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

Analog Input Structure.............................................................. 12

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

Reference Section ....................................................................... 13

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

Power Consumption .................................................................. 14

Microprocessor Interfacing....................................................... 14

Application Hints ........................................................................... 16

Grounding and Layout .............................................................. 16

Outline Dimensions ....................................................................... 17

Ordering Guide .......................................................................... 17

REVISION HISTORY

2/05—Rev. 0 to Rev. A

Changes to Table 3............................................................................ 6

Changes to Ordering Guide .......................................................... 17

10/03—Rev. 0: Initial Version