ADT7482
TABLE OF CONTENTS
Features .............................................................................................. 1
Temperature Value Registers .................................................... 12
Conversion Rate Register.......................................................... 13
Limit Registers............................................................................ 13
Status Registers ........................................................................... 14
Offset Register ............................................................................ 14
One-Shot Register ...................................................................... 15
Applications....................................................................................... 1
General Description......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Timing Specifications .................................................................. 4
Absolute Maximum Ratings............................................................ 5
Thermal Resistance ...................................................................... 5
ESD Caution.................................................................................. 5
Pin Configuration and Function Descriptions............................. 6
Typical Performance Characteristics ............................................. 7
Theory of Operation ........................................................................ 9
Series Resistance Cancellation.................................................... 9
Temperature Measurement Method .......................................... 9
Temperature Measurement Results.......................................... 10
Temperature Measurement Range ........................................... 10
Temperature Data Format......................................................... 11
Registers........................................................................................... 12
Address Pointer Register ........................................................... 12
Configuration Registers............................................................. 12
ALERT
Consecutive
Register ................................................... 15
Serial Bus Interface......................................................................... 17
Addressing the Device............................................................... 17
ALERT
Output............................................................................ 19
Low Power Standby Mode......................................................... 19
Sensor Fault Detection .............................................................. 19
Interrupt System......................................................................... 19
Applications Information.............................................................. 22
Noise Filtering............................................................................. 22
Factors Affecting Diode Accuracy........................................... 22
Thermal Inertia and Self-Heating............................................ 22
Layout Considerations............................................................... 23
Application Circuit..................................................................... 23
Outline Dimensions....................................................................... 24
Ordering Guide .......................................................................... 24
REVISION HISTORY
6/06—Revision 0: Initial Version
Rev. 0 | Page 2 of 24
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