AD8318

Rev. B | Page 2 of 24

TABLE OF CONTENTS

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

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

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

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

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

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

Absolute Maximum Ratings............................................................ 6

ESD Caution.................................................................................. 6

Pin Configuration and Function Descriptions............................. 7

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

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

Using the AD8318 .......................................................................... 12

Basic Connections ...................................................................... 12

Enable Interface .......................................................................... 12

Input Signal Coupling................................................................ 12

Output Interface ......................................................................... 13

Setpoint Interface ....................................................................... 13

Temperature Compensation of Output Voltage..................... 13

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

Measurement Mode ................................................................... 14

Device Calibration and Error Calculation.............................. 15

Selecting Calibration Points to Improve Accuracy over a

Reduced Range ........................................................................... 16

Variation in Temperature Drift from Device to Device........ 17

Temperature Drift at Different Temperatures ........................ 17

Setting the Output Slope in Measurement Mode .................. 17

Response Time Capability......................................................... 18

Output Filtering.......................................................................... 18

Controller Mode......................................................................... 19

Characterization Setup and Methods ...................................... 21

Evaluation Board ............................................................................ 22

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

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

REVISION HISTORY

4/07—Rev. A to Rev. B

Added Figure 2; Renumbered Sequentially .................................. 1

Changes to Table 1............................................................................ 3

Changes to Figure 23...................................................................... 12

Changes to Characterization Setup and Methods Section........ 21

Changes to Figure 48...................................................................... 23

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

Changes to Ordering Guide .......................................................... 24

1/06—Rev. 0 to Rev. A

Changed TADJ Resistor to RTADJ Resistor....................Universal

Changes to Applications .................................................................. 1

Changes to Table 1............................................................................ 3

Changes to Figure 5, Figure 6, and Figure 7 Captions................. 8

Changes to Figure 12 Caption......................................................... 9

Changes to Figure 15 Caption......................................................... 9

Changed General Description Heading to

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

Changes to Enable Interface Section ........................................... 12

Inserted Figure 24........................................................................... 12

Changes to Input Signal Coupling Section ................................. 12

Changes to Measurement Mode Section..................................... 14

Changes to Figure 36...................................................................... 17

Added Output Filtering Section ................................................... 19

Changes to Controller Mode Section .......................................... 19

Changes to Response Time Capability Section .......................... 18

Changes to Table 6.......................................................................... 22

Changes to Figure 47, Figure 48, and Figure 49 ......................... 23

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

Changes to Ordering Guide .......................................................... 24

7/04—Rev. 0: Initial Version