ADT7483A

Rev. 0 | Page 2 of 24

TABLE OF CONTENTS

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

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

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

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

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

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

SMBus Timing Specifications ..................................................... 4

Absolute Maximum Ratings............................................................ 5

Thermal Characteristics .............................................................. 5

ESD Caution.................................................................................. 5

Pin Configuration and Function Descriptions............................. 6

Typical Performance Characteristics ............................................. 7

Theory of Operation ........................................................................ 9

Temperature Measurement Method .......................................... 9

Temperature Measurement Results.......................................... 10

Temperature Measurement Range ........................................... 10

Temperature Data Format ......................................................... 10

Registers....................................................................................... 11

Serial Bus Interface..................................................................... 16

Addressing the Device ............................................................... 16

ALERT Output............................................................................ 18

Masking the ALERT Output..................................................... 19

Low Power Standby Mode......................................................... 19

Sensor Fault Detection .............................................................. 19

Interrupt System ......................................................................... 19

Applications..................................................................................... 21

Noise Filtering............................................................................. 21

Factors Affecting Diode Accuracy........................................... 21

Thermal Inertia and Self-Heating............................................ 21

Layout Considerations............................................................... 22

Application Circuit..................................................................... 22

Outline Dimensions ....................................................................... 23

Ordering Guide .......................................................................... 23

REVISION HISTORY

7/05—Revision 0: Initial Version