ADT7310TRZ-REEL7(2009) データシートの表示（PDF） - Analog Devices

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ADT7310TRZ-REEL7
(Rev.:2009)

±0.5°C Accurate, 16-Bit Digital SPI Temperature Sensor

Analog Devices 

ADT7310

TABLE OF CONTENTS

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

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

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

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

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

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

SPI Timing Specifications ........................................................... 4

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

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

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

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

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

Circuit Information...................................................................... 9

Converter Details.......................................................................... 9

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

One-Shot Mode .......................................................................... 10

1 SPS Mode.................................................................................. 10

Continuous Read Mode............................................................. 12

Shutdown ..................................................................................... 12

Fault Queue ................................................................................. 12

Temperature Data Format ......................................................... 13

Temperature Conversion Formulas ......................................... 13

Registers ........................................................................................... 14

REVISION HISTORY

4/09—Revision 0: Initial Version

Status Register............................................................................. 14

Configuration Register .............................................................. 15

Temperature Value Register ...................................................... 16

ID Register................................................................................... 16

TCRIT Setpoint Register ............................................................... 16

THYST Setpoint Register............................................................... 17

THIGH Setpoint Register .............................................................. 17

TLOW Setpoint Register ............................................................... 17

Serial Interface ................................................................................ 18

SPI Command Byte.................................................................... 18

Writing Data ............................................................................... 19

Reading Data............................................................................... 20

Interfacing to DSPs or Microcontrollers ................................. 20

Serial Interface Reset.................................................................. 20

INT and CT Outputs...................................................................... 21

Undertemperature and Overtemperature Detection ............ 21

Applications Information .............................................................. 23

Thermal Response Time ........................................................... 23

Supply Decoupling ..................................................................... 23

Temperature Monitoring........................................................... 23

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

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

Rev. 0 | Page 2 of 24

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