AD7416/AD7417/AD7418

Rev. I | Page 2 of 24

TABLE OF CONTENTS

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

 

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

 

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

 

Functional Block Diagrams............................................................. 1

 

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

 

Product Highlights ........................................................................... 3

 

Specifications..................................................................................... 4

 

AD7417/AD7418 Specifications................................................. 4

 

AD7416 Specifications................................................................. 6

 

Absolute Maximum Ratings............................................................ 7

 

ESD Caution.................................................................................. 7

 

Pin Configurations and Function Descriptions ........................... 8

 

Terminology .................................................................................... 10

 

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

 

Circuit Information.................................................................... 11

 

Converter Details........................................................................ 11

 

Typical Connection Diagram ................................................... 11

 

Analog Inputs.............................................................................. 11

 

On-Chip Reference .................................................................... 11

 

Temperature Measurement ....................................................... 12

 

Internal Register Structure........................................................ 12

 

Serial Bus Interface..................................................................... 14

 

OTI Output ................................................................................. 17

 

Fault Queue ................................................................................. 17

 

Power-On Defaults..................................................................... 17

 

Operating Modes........................................................................ 17

 

CONVST Start Mode................................................................. 18

 

Applications Information .............................................................. 19

 

Supply Decoupling ..................................................................... 19

 

Power-On Reset.......................................................................... 19

 

Mounting the AD7416/AD7417/AD7418 .............................. 19

 

Fan Controller............................................................................. 19

 

Thermostat .................................................................................. 19

 

System with Multiple AD7416 Devices................................... 20

 

Outline Dimensions ....................................................................... 21

 

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

 

REVISION HISTORY

11/10—Rev. H to Rev. I

Changes to Figure 19...................................................................... 16

2/09—Rev. G to Rev. H

Updated Format..................................................................Universal

Changes to Data Sheet Title, Figure 2 and Figure 3..................... 1

Moved Product Highlights Section ................................................ 3

Changes to Table 1............................................................................ 4

Changes to Endnote 1, Table 2........................................................ 6

Added Figure 5 Caption................................................................... 7

Changes to Table 4............................................................................ 8

Changes to Table 5 and Table 6....................................................... 9

Changes to On-Chip Reference Section ...................................... 11

Changes to Figure 13...................................................................... 12

Changes to Table 8 and Table 10................................................... 13

Changes to Figure 15, Figure 16, and Figure 17 ......................... 15

Changes to Reading Data From the AD7416/AD7417/AD7418

Section, Figure 18, and Figure 19 ................................................. 16

Change to Mode 1 .......................................................................... 17

Changes to Figure 22 Caption and CONVST Pin Mode

Section.............................................................................................. 18

Moved Figure 21 and Figure 22 .................................................... 18

Changes to Power-On Reset Section............................................ 19

Updated Outline Dimensions ....................................................... 21

Changes to Ordering Guide .......................................................... 23

8/04—Data Sheet Changed from Rev. F to Rev. G

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

Changes to Reading Data from the AD7416/AD7417/AD7418

Section.............................................................................................. 13

Changes to Power-On-Reset section ........................................... 14

7/03—Data Sheet Changed from Rev. E to Rev. F

Updated Features...............................................................................1

Updated Specifications .....................................................................3

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

Updated Ordering Guide .................................................................6

Updated Product Highlights............................................................7

Updated Circuit Information...........................................................7

Updated Temperature Measurement section ................................9

10/02—Data Sheet Changed from Rev. D to Rev. E

Edits to Specifications Headings .....................................................2

Added Temperature Measurement section....................................8

Edits to Serial Bus Address section .............................................. 10

Edits to Figure 11............................................................................ 12

Edits to CONVST Pin Mode section ........................................... 14

Edits to Power-On-Reset section ................................................. 14

Addition of Figures 16 and 17 ...................................................... 15

Updated Outlines ........................................................................... 16