ADPD4200 datasheet(2/93 Pages) AD

2 / 93 page

Data Sheet

ADPD4200

TABLE OF CONTENTS

analog.com

Rev. 0 | 2 of 93

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

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

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

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

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

Temperature and Power Specifications..............4

Performance Specifications................................5

Digital Specifications.......................................... 7

Timing Specifications......................................... 8

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

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

Recommended Soldering Profile........................9

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

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

Pin Configuration and Function Descriptions...... 10

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

Theory of Operation.............................................13

Introduction.......................................................13

Analog Signal Path...........................................13

LED Drivers...................................................... 15

Determining CVLED........................................... 15

Datapath, Decimation, Subsampling, and

FIFO............................................................... 16

Clocking............................................................19

Time Stamp Operation..................................... 19

Low Frequency Oscillator Calibration...............20

High Frequency Oscillator Calibration..............20

Time Slot Operation......................................... 21

Execution Modes..............................................22

Host Interface...................................................22

Applications Information...................................... 25

Operating Mode Overview................................25

Single Integration Mode................................... 25

Multiple Integration Mode................................. 34

Digital Integration Mode................................... 36

TIA ADC Mode................................................. 38

ECG Measurement with the ADPD4200.......... 39

Global Configuration Registers........................ 69

Interrupt Status and Control Registers............. 71

Threshold Setup and Control Registers........... 77

Clock and Timestamp Setup and Control

Registers........................................................ 79

System Registers............................................. 79

Input and Output Setup and Control

Registers........................................................ 80

Time Slot Configuration Registers....................83

AFE Timing Setup Registers............................ 87

LED Control and Timing Registers...................89

ADC Offset Registers....................................... 90

Output Data Registers......................................90

Outline Dimensions............................................. 93

Ordering Guide.................................................93

Evaluation Boards............................................ 93

REVISION HISTORY

3/2022—Revision 0: Initial Version

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