ADIS16485

Data Sheet

TABLE OF CONTENTS

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

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

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

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

Revision History ............................................................................... 3

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

Timing Specifications .................................................................. 6

Absolute Maximum Ratings............................................................ 8

ESD Caution.................................................................................. 8

Pin Configuration and Function Descriptions............................. 9

Typical Performance Characteristics ........................................... 10

Basic Operation............................................................................... 11

Register Structure ....................................................................... 11

SPI Communication................................................................... 12

Device Configuration ................................................................ 12

Reading Sensor Data.................................................................. 12

User Registers.................................................................................. 13

Output Data Registers.................................................................... 16

Inertial Sensor Data Format...................................................... 16

Rotation Rate (Gyroscope)........................................................ 16

Acceleration................................................................................. 17

Delta Angles ................................................................................ 17

Delta Velocity.............................................................................. 18

Internal Temperature ................................................................. 18

Status/Alarm Indicators............................................................. 19

Firmware Revision...................................................................... 19

Product Identification................................................................ 19

Digital Signal Processing ............................................................... 20

Gyroscopes/Accelerometers ..................................................... 20

Averaging/Decimation Filter .................................................... 20

FIR Filter Banks.......................................................................... 21

Calibration....................................................................................... 23

Gyroscopes.................................................................................. 23

Accelerometers ........................................................................... 24

Restoring Factory Calibration .................................................. 25

Point of Percussion Alignment................................................. 25

Alarms.............................................................................................. 26

Static Alarm Use......................................................................... 26

Dynamic Alarm Use .................................................................. 26

System Controls.............................................................................. 27

Global Commands ..................................................................... 27

Memory Management ............................................................... 27

General-Purpose I/O ................................................................. 28

Power Management.................................................................... 28

Applications Information .............................................................. 30

Mounting Tips ............................................................................ 30

Evaluation Tools ......................................................................... 31

Power Supply Considerations................................................... 31

Outline Dimensions....................................................................... 32

Ordering Guide .......................................................................... 32

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