Data Sheet

ADAR4002

TABLE OF CONTENTS

analog.com

Rev. A | 2 of 66

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

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

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

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

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

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

Timing Diagrams................................................ 8

SPI Block Write Mode...................................... 10

Short Control Command...................................10

Shift Register Mode.......................................... 11

Absolute Maximum Ratings.................................12

Thermal Resistance......................................... 12

Electrostatic Discharge (ESD) Ratings.............12

ESD Caution.....................................................12

Pin Configuration and Function Descriptions...... 13

Typical Performance Characteristics................... 14

Time Delay Sweep, Time Delay Range 0.........14

Time Delay Sweep, Time Delay Range 1.........16

DSA Attenuation Sweep, Time Delay Range

0..................................................................... 17

DSA Attenuation Sweep, Time Delay Range

1..................................................................... 18

DSA Sweeps.................................................... 19

TDU Sweeps.................................................... 23

Voltage Supply and Temperature Sweeps....... 26

Polar Plots........................................................28

Noise Figure.....................................................31

Compression and Linearity...............................33

Supply Current and Settling Time.................... 36

Equivalent Circuits...............................................37

Terminology......................................................... 38

Theory of Operation.............................................40

RF Path............................................................ 40

TDU and DSA...................................................40

Digital Section.................................................. 41

Digital Modes and Interface..............................41

SPI Transaction Protocols................................42

SPI Mode..........................................................42

Data Load.........................................................42

Update..............................................................42

Shift Register Mode..........................................43

SPI Registers................................................... 43

Applications Information...................................... 45

Basic Connections............................................45

Device Setup....................................................46

Digital Interface for Multiple Chip Operation.....46

Power Management Recommendations.......... 47

Logic Voltages Greater Than 1.2 V.................. 48

Register Map....................................................... 49

Outline Dimensions............................................. 66

Ordering Guide.................................................66

Evaluation Boards............................................ 66

REVISION HISTORY

6/2025—Revision A: Initial Version

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