Compact, Precision

Ten Degrees of Freedom Inertial Sensor

Data Sheet

ADIS16448

Rev. B

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FEATURES

Triaxial digital gyroscope with digital range scaling

±250°/sec, ±500°/sec, ±1000°/sec settings

Axis-to-axis alignment, <0.05°

Triaxial digital accelerometer, ±18 g minimum

Triaxial digital magnetometer, ±1.9 gauss minimum

Digital barometer, 10 mbar to 1200 mbar

Calibrated pressure range: 300 mbar to 1100 mbar

Autonomous operation and data collection

No external configuration commands required

205 ms start-up time

Factory calibrated sensitivity, bias, and axial alignment

Calibration temperature range: −40°C to +70°C

SPI-compatible serial interface

Embedded temperature sensor

Programmable operation and control

Automatic and manual bias correction controls

Bartlett window FIR length, number of taps

Digital I/O: data ready, alarm indicator, general-purpose

Alarms for condition monitoring

Enable external sample clock input up to 1.1 kHz

Single command self test

Single-supply operation: 3.15 V to 3.45 V

2000 g shock survivability

Operating temperature range: −40°C to +85°C

APPLICATIONS

Platform stabilization and control

Navigation

Robotics

GENERAL DESCRIPTION

The ADIS16448 iSensor® device is a complete inertial system

that includes a triaxial gyroscope, a triaxial accelerometer, a

triaxial magnetometer, and pressure sensors. Each sensor in

the ADIS16448 combines industry-leading iMEMS® technology

with signal conditioning that optimizes dynamic performance.

The factory calibration characterizes each sensor for sensitivity,

bias, alignment, and linear acceleration (gyroscope bias). As a

result, each sensor has its own dynamic compensation formulas

that provide accurate sensor measurements.

The ADIS16448 provides a simple, cost-effective method for

integrating accurate, multiaxis inertial sensing into industrial

systems, especially when compared with the complexity and

investment associated with discrete designs. All necessary motion

testing and calibration are part of the production process at the

factory, greatly reducing system integration time. Tight orthogonal

alignment simplifies inertial frame alignment in navigation systems.

The SPI and register structures provide a simple interface for

data collection and configuration control.

The ADIS16448 has a compatible pinout for systems that currently

use other Analog Devices, Inc., IMU products (ADIS163xx/

ADIS164xx). The ADIS16448 is packaged in a module that is

approximately 24.1 mm × 37.7 mm × 10.8 mm and has a standard

connector interface.

FUNCTIONAL BLOCK DIAGRAM

CONTROLLLER

CLOCK

TRIAXIAL

GYRO

TRIAXIAL

ACCEL

POWER

MANAGEMENT

CS

SCLK

DIN

DOUT

GND

VDD

TEMP

VDD

DIO1 DIO2 DIO3 DIO4/CLKIN RST

SPI

TRIAXIAL

MAGN

PRESSURE

SELF TEST

I/O

ALARMS

OUTPUT

DATA

REGISTERS

USER

CONTROL

REGISTERS

CALIBRATION

AND

FILTERS

ADIS16448

Figure 1.