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AD4114

Data Sheet

Rev. 0 | Page 2 of 49

TABLE OF CONTENTS

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

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

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

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

Functional Block Diagram .............................................................. 3

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

Timing Characteristics ................................................................ 6

Absolute Maximum Ratings ........................................................... 8

Thermal Resistance ...................................................................... 8

Electrostatic Discharge (ESD) Ratings ...................................... 8

ESD Caution.................................................................................. 8

Pin Configuration and Function Descriptions ............................ 9

Typical Performance Characteristics........................................... 11

Theory of Operation ...................................................................... 14

Power Supplies............................................................................ 15

Digital Communication ............................................................ 15

AD4114 Reset.............................................................................. 16

Configuration Overview............................................................ 16

Noise Performance and Resolution ............................................. 19

Circuit Description......................................................................... 20

Muliplexer ................................................................................... 20

Voltage Inputs............................................................................. 20

Absolute Input Pin Voltages..................................................... 21

Data Output Coding .................................................................. 21

AD4114 Reference Options ...................................................... 21

Buffered Reference Input .......................................................... 23

Clock Source ............................................................................... 23

Digital Filter .................................................................................... 24

Sinc5 + Sinc1 Filter .................................................................... 24

Sinc3 Filter................................................................................... 24

Single-Cycle Settling Mode....................................................... 25

Enhanced 50 Hz and 60 Hz Rejection Filters......................... 25

Operating Modes............................................................................ 27

Continuous Conversion Mode................................................. 27

Continuous Read Mode ............................................................ 27

Single Conversion Mode ........................................................... 27

Standby Mode and Power-Down Mode ................................. 29

Calibration Modes ..................................................................... 29

Digital Interface .............................................................................. 30

Checksum Protection ................................................................ 30

CRC Calculation......................................................................... 31

Integrated Functions...................................................................... 33

General-Purpose Input/Output ............................................... 33

External Multiplexer Control ................................................... 33

Delay ............................................................................................ 33

16-Bit and 24-Bit Conversions................................................. 33

DOUT_RESET ........................................................................... 33

Synchronization ......................................................................... 33

Error Flags................................................................................... 34

DATA_STAT Function............................................................. 34

IOSTRENGTH Function .......................................................... 34

Internal Temperature Sensor ................................................... 35

Applications Information ............................................................. 36

Grounding and Layout.............................................................. 36

Communications Register ........................................................ 39

Status Register............................................................................. 40

ADC Mode Register................................................................... 41

Interface Mode Register ............................................................ 42

Data Register............................................................................... 43

GPIO Configuration Register................................................... 44

ID Register .................................................................................. 45

Channel Register 0 to Channel Register 15 ............................ 45

Setup Configuration Register 0 to Setup Configuration

Regsiter 7 ..................................................................................... 46

Filter Configuration Register 0 to Filter Configuration

Offset Register 0 to Offset Register 7....................................... 48

Gain Register 0 to Gain Register 7........................................... 48

Outline Dimensions....................................................................... 49

Ordering Guide .......................................................................... 49

REVISION HISTORY

7/2020—Revision 0: Initial Version

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