ADIS16488

Data Sheet

Rev. B | Page 2 of 36

TABLE OF CONTENTS

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

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

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

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

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

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

Timing Specifications .................................................................. 5

Absolute Maximum Ratings............................................................ 6

ESD Caution.................................................................................. 6

Pin Configuration and Function Descriptions............................. 7

Typical Performance Characteristics ............................................. 8

Basic Operation................................................................................. 9

Register Structure......................................................................... 9

SPI Communication................................................................... 10

Device Configuration ................................................................ 10

Reading Sensor Data.................................................................. 10

User Registers.................................................................................. 11

Output Data Registers.................................................................... 14

Inertial Sensor Data Format...................................................... 14

Rotation Rate (Gyroscope)........................................................ 14

Acceleration................................................................................. 15

Delta Angles ................................................................................ 15

Delta Velocity.............................................................................. 16

Magnetometers ........................................................................... 17

Barometer .................................................................................... 17

Internal Temperature ................................................................. 17

Status/Alarm Indicators............................................................. 18

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

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

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

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

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

Magnetometer/Barometer......................................................... 20

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

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

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

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

Magnetometers ........................................................................... 24

Barometers .................................................................................. 26

Restoring Factory Calibration .................................................. 26

Point of Percussion Alignment................................................. 26

Alarms.............................................................................................. 27

Static Alarm Use......................................................................... 27

Dynamic Alarm Use .................................................................. 27

System Controls.............................................................................. 29

Global Commands ..................................................................... 29

Memory Management ............................................................... 29

General-Purpose I/O ................................................................. 29

Power Management ................................................................... 30

Applications Information .............................................................. 32

Prototype Interface Board......................................................... 32

Installation Tips.......................................................................... 32

Outline Dimensions....................................................................... 33

Ordering Guide .......................................................................... 33

REVISION HISTORY

2/12—Rev. A to Rev. B

Change to Features Section ............................................................. 1

Changes to Table 3............................................................................ 6

Changes to Figure 7 and Figure 8................................................... 8

Changes to Delta Angles Section.................................................. 15

Changes to Delta Velocity Section, Table 31, Table 32, Table 33,

and Table 34..................................................................................... 16

Change to Status/Alarm Indicators Section................................ 18

Changes to Gyroscopes/Accelerometers Section,

Averaging/Decimation Filter Section, Magnetometer/Barometer

Section, and Figure 20.................................................................... 20

Changes to Input Sync/Clock Control Section........................... 30

Changes to Prototype Interface Board Section and

Figure 26 .......................................................................................... 30

12/11—Rev. 0 to Rev. A

Changes to Specifications Section...................................................3

Changes to System/Alarm Indicators Section ............................ 18

Changes to Averaging/Decimation Filter Section...................... 20

Changes to General-Purpose I/O Section................................... 29

Changes to Input Sync/Clock Control Section........................... 30

10/11—Revision 0: Initial Version