Analog Devices ADIS16375 iSensor inertial system

The ADIS16375 iSensor is an inertial system that includes a tri-axis gyroscope and tri-axis accelerometer. Each sensor combines iMEMS technology with signal conditioning that optimises performance.

The factory calibration characterises each sensor for sensitivity, bias, alignment and linear acceleration (gyro bias). As a result, each sensor has its own dynamic compensation formulas that provide accurate sensor measurements over a temperature range of -40 to +85°C.

The device provides a 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 SPI interface and register structure provide faster data collection and configuration control.

Features include: triaxis digital gyroscope with range scaling, ±300°/sec, and tight orthogonal alignment, \<0.05°; triaxis digital accelerometer, ±18 g; delta-angle/velocity calculations; wide sensor bandwidth, 330 Hz; high sample rate, 2.460 kSps; autonomous operation and data collection; no external configuration commands required; start-up time, 500 ms; factory-calibrated sensitivity, bias and axial alignment; calibration temperature range, -40 to +85°C; SPI-compatible serial interface; embedded temperature sensor; programmable operation and control; automatic and manual bias correction controls; four FIR filter banks, 120 configurable taps; digital I/O - data-ready, alarm indicator, external clock.