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AD8495CRMZ

Precision Thermocouple Amplifiers with Cold Junction Compensation

Analog Devices 

AD8494/AD8495/AD8496/AD8497

TABLE OF CONTENTS

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

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

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

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

Product Highlights ........................................................................... 1

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

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

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

Thermal Resistance ...................................................................... 5

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

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

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

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

REVISION HISTORY

7/10—Revision 0: Initial Version

Thermocouples ........................................................................... 11

Thermocouple Signal Conditioner .......................................... 11

AD8494/AD8495/AD8496/AD8497 Architecture .................. 11

Maximum Error Calculation .................................................... 12

Recommendations for Best Circuit Performance .................. 13

Applications Information .............................................................. 14

Basic Connection ....................................................................... 14

Ambient Temperature Sensor................................................... 14

Setpoint Controller .................................................................... 15

Measuring Negative Temperatures .......................................... 15

Reference Pin Allows Offset Adjustment................................ 15

Outline Dimensions ....................................................................... 16

Ordering Guide .......................................................................... 16

Rev. 0 | Page 2 of 16

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