ADPD4100 datasheet(2/101 Pages) AD

2 / 101 page

ADPD4100/ADPD4101

Data Sheet

Rev. 0 | Page 2 of 101

TABLE OF CONTENTS

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

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

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

Functional Block Diagram .............................................................. 1

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

Specifications..................................................................................... 3

Temperature and Power Specifications ..................................... 3

Performance Specifications......................................................... 4

Digital Specifications ................................................................... 6

Timing Specifications .................................................................. 6

Absolute Maximum Ratings............................................................ 9

Thermal Resistance ...................................................................... 9

Electrostatic Discharge (ESD) Ratings ...................................... 9

ESD Caution.................................................................................. 9

Pin Configurations and Function Descriptions ......................... 10

Typical Performance Characteristics ........................................... 13

Theory of Operation ...................................................................... 15

Introduction ................................................................................ 15

Analog Signal Path ..................................................................... 15

LED Drivers ................................................................................ 16

Determining CVLED...................................................................... 17

Datapath, Decimation, Subsampling, and FIFO.................... 18

Clocking....................................................................................... 21

Time Stamp Operation .............................................................. 22

Low Frequency Oscillator Calibration .................................... 22

High Frequency Oscillator Calibration ................................... 22

Time Slot Operation .................................................................. 23

Execution Modes........................................................................ 24

Host Interface.............................................................................. 24

Applications Information .............................................................. 28

Operating Mode Overview ....................................................... 28

Analog Integration Mode.......................................................... 28

Digital Integration Mode........................................................... 40

TIA ADC Mode.......................................................................... 42

Protecting Against TIA Saturation in Normal Operation .... 42

ECG Measurement with the ADPD4100/ADPD4101 .......... 44

Global Configuration Registers................................................ 70

Interrupt Status and Control Registers.................................... 72

Threshold Setup and Control Registers .................................. 82

Clock and Timestamp Setup and Control Registers.............. 84

System Registers ......................................................................... 84

I/O Setup and Control Registers .............................................. 86

Time Slot Configuration Registers........................................... 89

AFE Timing Setup Registers..................................................... 94

LED Control and Timing Registers ......................................... 96

ADC Offset Registers................................................................. 97

Output Data Registers ............................................................... 97

Outline Dimensions..................................................................... 100

Ordering Guide ........................................................................ 101

REVISION HISTORY

6/2020—Revision 0: Initial Version

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