AD4680/AD4681
Data Sheet
TABLE OF CONTENTS
Features.............................................................................................. 1
Oversampling ............................................................................. 18
Resolution Boost ........................................................................ 19
Alert.............................................................................................. 19
Power Modes .............................................................................. 20
Internal and External Reference .............................................. 20
Software Reset............................................................................. 20
Diagnostic Self Test.................................................................... 20
Interface........................................................................................... 21
Reading Conversion Results..................................................... 21
Low Latency Readback.............................................................. 22
Reading from Device Registers ................................................ 23
Writing to Device Registers...................................................... 23
CRC.............................................................................................. 23
Registers........................................................................................... 25
Addressing Registers.................................................................. 25
CONFIGURATION1 Register................................................. 26
CONFIGURATION2 Register................................................. 27
Applications ...................................................................................... 1
General Description......................................................................... 1
Companion Products....................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications .................................................................................... 3
Timing Specifications .................................................................. 5
Absolute Maximum Ratings ........................................................... 7
Thermal Resistance...................................................................... 7
Electrostatic Discharge (ESD) Ratings...................................... 7
ESD Caution.................................................................................. 7
Pin Configuration and Function Descriptions ............................ 8
Typical Performance Characteristics............................................. 9
Terminology.................................................................................... 13
Theory of Operation ...................................................................... 14
Circuit Information ................................................................... 14
Converter Operation.................................................................. 14
Analog Input Structure.............................................................. 14
ADC Transfer Function ............................................................ 15
Applications Information.............................................................. 16
Power Supply .............................................................................. 16
Modes of Operation ....................................................................... 18
ALERT
Register.......................................................................... 27
ALERT_LOW_THRESHOLD Register.................................. 28
ALERT_HIGH_THRESHOLD Register ................................ 28
Outline Dimensions....................................................................... 29
Ordering Guide .......................................................................... 29
REVISION HISTORY
10/2020—Revision 0: Initial Version
Rev. 0 | Page 2 of 29
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