AD7817/AD7818
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Converter Details ....................................................................... 12
Typical Connection Diagram ................................................... 12
Analog Inputs.............................................................................. 12
On-Chip Reference .................................................................... 13
ADC Transfer Function............................................................. 13
Temperature Measurement....................................................... 14
Temperature Measurement Error Due to Reference Error... 14
Self-Heating Considerations..................................................... 14
Operating Modes........................................................................ 15
Power vs. Throughput................................................................ 17
AD7817 Serial Interface............................................................. 17
AD7818 Serial Interface Mode................................................. 18
Outline Dimensions....................................................................... 19
Ordering Guide .......................................................................... 20
Applications....................................................................................... 1
Functional Block Diagrams............................................................. 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Timing Characteristics ................................................................ 6
Absolute Maximum Ratings............................................................ 7
ESD Caution.................................................................................. 7
Pin Configurations and Function Descriptions ........................... 8
Terminology .................................................................................... 10
Control Byte .................................................................................... 11
Circuit Information.................................................................... 12
REVISION HISTORY
10/12—Rev. C to Rev. D
9/04—Rev. B to Rev. C
Deleted AD7816..................................................................Universal
Changes to Format .............................................................Universal
Deleted Figure 15; Renumbered Sequentially............................. 14
Updated Outline Dimensions....................................................... 19
Changes to Ordering Guide .......................................................... 20
Changes to Ordering Guide.............................................................6
Changes to Operating Modes Section and Figure 16 ................ 13
Changes to Figure 17...................................................................... 14
Changes to AD7817 Serial Interface, Read Operation Section
and Figure 20................................................................................... 15
Changes to Figure 21...................................................................... 16
Rev. D | Page 2 of 20
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