Triaxial Inertial Sensor with Magnetometer

The ADIS16405 iSensor® product is a complete inertial system that includes a triaxal gyroscope, a triaxial accelerometer, and a triaxial magnetometer. The ADIS16405 combines the Analog Devices, Inc., proprietary 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 ADIS16405 provides a simple, cost effective method for integrating accurate, multiple 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 ADIS16362/ADIS16364/ADIS16365 family, upgrading to the ADIS16405 requires only firmware changes to accommodate additional sensors and register map updates.

This compact module is approximately 23 mm × 23 mm × 23 mm and provides a flexible connector interface that enables multiple mounting orientation options.

Applications

* Unmanned aerial vehicles

* Platform control

* Digital compassing

* Navigation

* Triaxial, digital gyroscope with digital range scaling

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

* Tight orthogonal alignment, 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

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

* SPI-compatible serial interface

* Embedded temperature sensor