Complete 6D MEMS inertial measurement unit features sensor fusion

Fairchild Semiconductor's ?FIS1100 intelligent MEMS inertial measurement unit (IMU) is now available from Mouser. It is a complete 6D MEMS IMU with sensor fusion to specify system level orientation accuracy. When using the FIS1100 in combination with the supplied XKF3 9D sensor fusion, the system features an accurate ±3 degree pitch and roll orientation, and a ±5 degree yaw / heading typical specification. The FIS1100 IMU has up to ten times lower processing power consumption in a wide range of motion-enabled, battery-powered applications. The FIS1100 incorporates a three-axis Gyroscope and Accelerometer. It can connect an external three-axis magnetometer through an I2C master for a complete 9DOF system. The device also incorporates an advanced vector digital signal processor (DSP) motion co-processor called the AttitudeEngine. The AttitudeEngine efficiently encodes high frequency motion at high internal sampling rates, preserving full accuracy across a y output data rate. This enables the application to utilize low Output Data Rates (ODR) or on-demand (host polling) and still acquire accurate 3D motion data. The AttitudeEngine allows reducing the data processing and interrupt load on a host processor with no compromises in 3D motion tracking accuracy. The result is very low total system power in combination with high accuracy, which are essential to many portable and battery-powered applications, says the company.