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AD4115

Data Sheet

Rev. 0 | Page 2 of 51

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

AD4115 Reset.............................................................................. 15

Configuration Overview............................................................ 17

Noise Performance and Resolution ............................................. 20

Circuit Description......................................................................... 22

Muliplexer ................................................................................... 22

Voltage Inputs............................................................................. 22

Absolute Input Pin Voltages..................................................... 23

Data Output Coding .................................................................. 23

AD4115 Reference Options ...................................................... 23

Buffered Reference Input .......................................................... 24

Clock Source ............................................................................... 24

Digital Filter .................................................................................... 26

Sinc5 + Sinc1 Filter .................................................................... 26

Sinc3 Filter................................................................................... 26

Single-Cycle Settling Mode....................................................... 26

Enhanced 50 Hz and 60 Hz Rejection Filters......................... 27

Operating Modes............................................................................ 29

Continuous Conversion Mode................................................. 29

Continuous Read Mode ............................................................ 29

Single Conversion Mode ........................................................... 29

Standby Mode and Power-Down Mode ................................. 31

Calibration Modes ..................................................................... 31

Digital Interface.............................................................................. 32

Checksum Protection ................................................................ 32

CRC Calculation......................................................................... 33

Integrated Functions...................................................................... 35

General-Purpose Input/Output ............................................... 35

External Multiplexer Control................................................... 35

Delay ............................................................................................ 35

16-Bit and 24-Bit Conversions................................................. 35

DOUT_RESET ........................................................................... 35

Synchronization ......................................................................... 35

Error Flags................................................................................... 36

DATA_STAT Function............................................................. 36

IOSTRENGTH Function .......................................................... 36

Internal Temperature Sensor ................................................... 37

Applications Information ............................................................. 38

Grounding and Layout.............................................................. 38

Communications Register ........................................................ 41

Status Register............................................................................. 42

ADC Mode Register................................................................... 43

Interface Mode Register ............................................................ 44

Data Register............................................................................... 45

GPIO Configuration Register................................................... 46

ID Register .................................................................................. 47

Channel Register 0 to Channel Register 15............................ 47

Setup Configuration Register 0 to Setup Configuration

Filter Configuration Register 0 to Filter Configuration

Offset Register 0 to OFFSET Register 7 .................................. 50

Gain Register 0 to Gain Register 7........................................... 50

Outline Dimensions....................................................................... 51

Ordering Guide .......................................................................... 51

REVISION HISTORY

7/2020—Revision 0: Initial Version

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