Triaxial Inertial Sensor

with Magnetometer

ADIS16400/ADIS16405

Rev. B

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FEATURES

Triaxial, digital gyroscope with digital range scaling

±75°/sec, ±150°/sec, ±300°/sec settings

Tight orthogonal alighment, <0.05°

Triaxial, digital accelerometer, ±18 g

Triaxial, digital magnetometer, ±2.5 gauss

Autonomous operation and data collection

No external configuration commands required

220 ms start-up time

4 ms sleep mode recovery time

Factory-calibrated sensitivity, bias, and axial alignment

ADIS16400 calibration temperature: +25°C

ADIS16405 calibration temperature range: −40°C to +85°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

Sleep mode for power management

DAC output voltage

Enable external sample clock input up to 1.2 kHz

Single-command self-test

Single-supply operation: 4.75 V to 5.25 V

2000 g shock survivability

Operating temperature range: −40°C to +105°C

APPLICATIONS

Unmanned aerial vehicles

Platform control

Digital compassing

Navigation

FUNCTIONAL BLOCK DIAGRAM

TRI-AXIS MEMS

ANGULAR RATE

SENSOR

SIGNAL

CONDITIONING

AND

CONVERSION

CALIBRATION

AND

DIGITAL

PROCESSING

DIGITAL

CONTROL

POWER

MANAGEMENT

OUTPUT

REGISTERS

AND SPI

INTERFACE

AUX_

ADC

AUX_

DAC

RST

CS

SCLK

DIN

DOUT

VCC

GND

DIO4/

CLKIN

SELF-TEST

ADIS16405

TRI-AXIS MEMS

ACCELERATION

SENSOR

TRI-AXIS

MAGNETIC

SENSOR

TEMPERATURE

SENSOR

ALARMS

DIO3

DIO2

DIO1

Figure 1.

GENERAL DESCRIPTION

The ADIS16400/ADIS16405 iSensor® products are complete

inertial systems that include a triaxal gyroscope, a triaxial

accelerometer, and a triaxial magnetometer. The ADIS16400/

ADIS16405 combine 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 for correction

formulas that provide accurate sensor measurements over a

temperature range of −40°C to +85°C. The magnetometers employ

a self-correction function to provide accurate bias performance

over temperature, as well.

The ADIS16400/ADIS16405 provide a simple, cost-effective

method for integrating accurate, multi-axis 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. An improved serial peripheral interface

(SPI) and register structure provide faster data collection and

configuration control. By using a compatible pinout and the

same package as the ADIS1635x and ADIS1636x families,

upgrading to the ADIS16400/ADIS16405 requires only firmware

changes to accommodate additional sensors and register map

updates.

These compact modules are approximately 23 mm × 23 mm ×

23 mm and provide a flexible connector interface that enables

multiple mounting orientation options.