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Fairchild takes on MEMS space with 6-axis IMU

Posted: 22 Jun 2015 ?? ?Print Version ?Bookmark and Share

Keywords:Fairchild Semiconductor? IMU? MEMS? DSP? accelerometer?

Fairchild Semiconductor has introduced an inertial measurement unit (IMU) with an in-component application digital signal processor (DSP). According to the company, the FIS1100 includes tri-axis accelerometer and tri-axis gyroscope, AttitudeEngine DSP and XKF3 sensor fusion software.

The IMU can be connected to a tri-axis magnetometer via an I2C bus and when used with the XKF3 software can measure 3 degree pitch and roll and 5 degree yaw/heading typical specification, Fairchild said.


The main claim for the IMU is that it is lower power than some rival architectures that require high sampling inertial measurement sampling frequencies fed to the host MCU. The AttitudeEngine DSP allows sampling to be reduced in frequency and sends processed information to the host MCU less often, Fairchild indicated.

The sensor fusion software also performs background calibration that is required for accuracy, consistency and fluidity, added the company.

When Fairchild announced it would be entering the MEMS market in 2014 it said it would do so using foundry manufacturing. However, Fairchild said the FIS1100 is based on a proprietary MEMS process that includes a 60?m device layer and provides through-silicon via (TSV) interconnects as well as a single-die gyro and accelerometer with a dual-vacuum design.

Fairchild did not disclose where the process has been transferred to for manufacturing.

The FIS1100 comes in a package measuring 3.3mm x 3.3mm x 1mm and is available for sampling and order placement. The company did not indicate a price for the part.

- Peter Clarke
??EE Times Europe

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