AD4696 datasheet(2/96 Pages) AD

2 / 96 page

AD4695/AD4696

Data Sheet

Rev. 0 | Page 2 of 96

TABLE OF CONTENTS

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

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

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

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

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

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

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

Absolute Maximum Ratings ......................................................... 10

Thermal Resistance .................................................................... 10

Electrostatic Discharge (ESD) Ratings.................................... 10

ESD Caution................................................................................ 10

Pin Configuration and Function Descriptions .......................... 11

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

Terminology.................................................................................... 23

Theory of Operation ...................................................................... 24

Overview...................................................................................... 24

Converter Operation.................................................................. 24

Transfer Function ...................................................................... 26

Analog Inputs ............................................................................. 27

Input Overvoltage Protection Clamps .................................... 31

Temperature Sensor................................................................... 32

Voltage Reference Input............................................................ 32

Power Supplies............................................................................ 32

Oversampling and Decimation ................................................ 33

Offset and Gain Correction ...................................................... 34

Threshold Detection and Alert Indicators ............................. 34

Busy Indicator............................................................................. 36

Channel Sequencing Modes ..................................................... 36

Digital Interface.............................................................................. 41

Conversion Mode....................................................................... 48

Autocycle Mode ......................................................................... 54

General-Purpose Pin ................................................................. 56

Device Reset................................................................................ 56

Applications Information ............................................................. 60

Analog Front-End Design......................................................... 61

Analog Input Overvoltage Protection..................................... 64

Reference Circuitry Design....................................................... 65

Reference Circuit Design for Driving REF Input.................. 65

Converting Between Codes and Volts .................................... 67

Oversampling for Noise Reduction......................................... 67

Digital Interface Operation....................................................... 67

Device Configuration Recommendations .............................. 74

Effective Channel Sample Rate ................................................ 75

Layout Guidelines ...................................................................... 77

Evaluating AD4695/AD4696 Performance............................ 77

Outline Dimensions....................................................................... 96

Ordering Guide .......................................................................... 96

REVISION HISTORY

12/2020—Revision 0: Initial Version

AD4696 Datasheet(PDF) 2 Page - Analog Devices

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