Data Sheet

ADXL314

TABLE OF CONTENTS

analog.com

Rev. A | 2 of 27

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

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

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

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

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

Absolute Maximum Ratings...................................5

Thermal Resistance........................................... 5

Solder Profile......................................................5

Electrostatic Discharge (ESD) Ratings...............5

ESD Caution.......................................................5

Pin Configuration and Function Descriptions........ 6

Typical Performance Characteristics..................... 7

Theory of Operation.............................................10

Power Sequencing........................................... 10

Power Savings................................................. 10

FIFO Buffer.......................................................11

Interrupts.......................................................... 12

Self Test............................................................13

Serial Communications........................................14

Serial Port Input and Output Default States..... 14

SPI....................................................................14

I2C.................................................................... 17

Register Map....................................................... 19

Register Definitions.......................................... 19

Applications Information...................................... 23

Power Supply Requirements ...........................23

Mechanical Considerations for Mounting......... 23

Threshold......................................................... 23

Link Mode.........................................................23

Sleep Mode vs. Low Power Mode....................23

Offset Compensation........................................24

Using Self Test................................................. 24

Asynchronous Data Readings..........................24

Data Formatting at Output Data Rate of

3200 Hz and 1600 Hz.....................................24

Axes of Acceleration Sensitivity....................... 25

Outline Dimensions............................................. 26

Ordering Guide.................................................26

Evaluation Boards............................................ 26

Automotive Products........................................ 27

REVISION HISTORY

10/2022—Rev. 0 to Rev. A

Moved Solder Profile Section, Figure 2, and Table 4.......................................................................................5

Change to Figure 3.......................................................................................................................................... 6

Change to Power Sequencing Section.......................................................................................................... 10

Changes to Table 16......................................................................................................................................19

Changed Enable Bits Section to Entries Bits Section.................................................................................... 22

Changes to Entries Bits Section.................................................................................................................... 22

5/2022—Revision 0: Initial Version