Tri-Axis Inertial Sensor

Preliminary Technical Data

ADIS16365

Rev. PrA

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FEATURES

Tri-axis gyroscope with digital range scaling

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

14-bit resolution

Tri-axis accelerometer

±17 g measurement range

14-bit resolution

350 Hz bandwidth

Factory calibrated sensitivity, bias, and alignment

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

External clock input for sample synchronization

Digitally controlled bias calibration

Digitally controlled sample rate

Digitally controlled filtering

Programmable condition monitoring

Auxiliary digital input/output

Digitally activated self-test

Programmable power management

Embedded temperature sensor

SPI-compatible serial interface

Auxiliary 12-bit ADC input and DAC output

Single-supply operation: 4.75 V to 5.25 V

2000 g shock survivability

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

APPLICATIONS

Guidance and control

Platform control and stabilization

Motion control and analysis

Inertial measurement units

General navigation

Image stabilization

Robotics

FUNCTIONAL BLOCK DIAGRAM

AUX_ADC

AUX_DAC

TEMPERATURE

SENSORS

ADIS16365

POWER

MANAGEMENT

ALARMS

TRI-AXIS MEMS

ANGULAR

RATE SENSOR

DIGITAL

CONTROL

CS

TRI-AXIS MEMS

ACCELERATION

SENSOR

DIO1 DIO2 DIO3 DIO4/

CLKIN

GND

VCC

RST

DOUT

SCLK

DIN

SIGNAL

CONDITIONING

AND

CONVERSION

CALIBRATION

AND

DIGITAL

PROCESSING

SPI

PORT

SELF-TEST

Figure 1.

GENERAL DESCRIPTION

The ADIS16365 iSensor® is a complete triple axis gyroscope and

triple axis accelerometer inertial sensing system. This sensor

combines the Analog Devices, Inc., iMEMS® and mixed signal

processing technology to produce a highly integrated solution

that provides calibrated, digital inertial sensing. An SPI

interface and simple output register structure allow for easy

access to data and configuration controls.

The SPI port provides access to the following embedded sensors:

X-, Y-, and Z-axis angular rates; X-, Y-, and Z-axis linear accelera-

tion; internal temperature; power supply; and auxiliary analog

input. The inertial sensors are precision-aligned across axes and

are calibrated for offset and sensitivity over the industrial

temperature range of −40 to +85°C. An embedded controller

dynamically compensates for all major influences on the

sensors, thus maintaining highly accurate sensor outputs

without further testing, circuitry, or user intervention.

The following programmable features simplify system integra-

tion: in-system autobias calibration, digital filtering and sample

rate, self-test, power management, condition monitoring, and

auxiliary digital input/output.

This compact module is approximately 23 mm × 23 mm ×

23 mm and provides a convenient flex-based connector system.