ADXL366 datasheet(2/71 Pages) AD

2 / 71 page

Data Sheet

ADXL366

TABLE OF CONTENTS

analog.com

Rev. 0 | 2 of 71

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

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

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

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

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

Timing Specifications......................................... 7

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

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

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

Recommended Soldering Profile......................12

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

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

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

Theory of Operation.............................................18

Mechanical Device Operation.......................... 18

Operating Modes..............................................18

Selectable Measurement Ranges.................... 19

Selectable Output Data Rates..........................19

Power and Noise Trade-Off..............................19

Temperature Sensor.........................................19

External ADC....................................................20

Power Savings Features..................................... 21

Ultra-Low Power Consumption in All Modes.... 21

Pedometer .......................................................21

External ADC Interrupt..................................... 22

Motion Detection.............................................. 22

FIFO................................................................. 25

Communications...............................................26

Additional Features..............................................27

Brownout Recovery.......................................... 27

Z-Axis Nonlinearity Compensation .................. 27

Free Fall Detection........................................... 27

Tap Detection................................................... 27

External Clock.................................................. 28

External Trigger ...............................................28

Self Test............................................................28

User Register Protection.................................. 28

Serial Communications........................................29

SPI Commands................................................ 29

Multibyte Transfers...........................................29

Invalid Addresses and Address Aliasing.......... 29

Latency Restrictions......................................... 29

Invalid Commands............................................29

SPI Bus Sharing...............................................30

I2C.................................................................... 30

ADI Device ID Register.................................... 34

MEMS Device ID Register................................34

Part ID Register................................................34

Revision ID Register.........................................34

XID Registers................................................... 35

X-Data Bits[13:6] Register................................35

Y-Data Bits[13:6] Register................................ 35

Z-Data Bits[13:6] Register................................ 36

Status Register.................................................36

FIFO Entries Bits[7:0] Register.........................37

FIFO Entries Bits[9:8] Register.........................37

X-Data Bits[13:6] Register................................37

X-Data Bits[5:0] Register..................................38

Y-Data Bits[13:6] Register................................ 38

Y-Data Bits[5:0] Register.................................. 38

Z-Data Bits[13:6] Register................................ 38

Z-Data Bits[5:0] Register.................................. 39

Temperate Data Bits[13:6] Register................. 39

Temperate Data Bits[5:0] Register................... 39

ADC Data Bits[13:6] Register...........................39

ADC Data Bits[5:0] Register.............................40

I2C FIFO Data Register.................................... 40

Soft Reset Register.......................................... 40

Threshold Activity Bits[12:6] Register...............40

Threshold Activity Bits[5:0] Register.................41

Timed Activity Register.....................................41

Threshold Inactivity Bits[12:6] Register............ 41

Threshold Inactivity Bits[5:0] Register.............. 42

Timed Inactivity Bits[15:8] Register.................. 42

Timed Inactivity Bits[7:0] Register.................... 42

Activity Inactivity Control Register.................... 43

FIFO Control Register...................................... 43

FIFO Sample Register......................................45

Interrupt Pin 1 Enables (Lower) Register......... 45

Interrupt Pin 2 Enables (Lower) Register......... 46

Filter Control Register...................................... 46

Power Control Register.................................... 47

User Self Test Register.....................................47

Tap Threshold Register.................................... 48

Tap Duration Register.......................................48

Tap Latency Register........................................48

Tap Window Register....................................... 49

X-Axis User Offset Register............................. 49

Y-Axis User Offset Register..............................49

Z-Axis User Offset Register..............................49

X-Axis User Sensitivity Register.......................50

Y-Axis User Sensitivity Register....................... 50

Z-Axis User Sensitivity Register....................... 50

Timer Control Register..................................... 51

Interrupt Pin 1 Enables (Upper) Register......... 51

Interrupt Pin 2 Enables (Upper) Register......... 52

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