Bosch launches next generation of IMU sensors for smartphone applications

Bosch Sensortec has today launched a new range of high-performance MEMS Inertial Measurement Units (IMUs) designed for use in smartphones.

The three sensors – BMI260, BMI261 and BMI263 – use a unique combination of Bosch Sensortec’s high-end accelerometer performance and gyroscope technology. These deliver an extensive range of features, including full Android compliance, an I3C interface, and support for sensor synchronisation.

High performance accelerometer

The new IMUs are equipped with a high-performance accelerometer and provide highly accurate step counting, motion detection and precise data to support indoor SLAM (Simultaneous Localisation and Mapping). Their high robustness against temperature fluctuations and printed circuit board stress enables extremely precise acceleration sensing.

Built-in gyroscope self-calibration

Each of the new IMU devices includes the industry’s first motionless Component Retrimming (CRT) feature for built-in gyroscope self-calibration.

This creates a ‘plug and play’ feature, eliminating the need to calibrate the sensitivity of the MEMS gyroscope using a rotation stimulus. This will significantly accelerate testing and manufacturing processes to further reduce cost and time-to-market for device makers.

Enabling sharp pictures and videos with OIS/EIS

The BMI260 family also enables much sharper pictures and ultra-smooth video stabilisation. This will substantially improve photo and video quality for end users, and supports stereo or 3D camera operation, stabilised panorama photo panning and action video tagging. This is delivered through low-latency OIS (optical image stabilisation) and EIS (electronic image stabilisation) support.

Ultra-low power consumption

The BMI260 IMU family is specifically optimised for always-on smartphone gesture and activity recognition. Its intelligent power management system enables its always-on features to run inside the ultra-low power domain of the IMU, reducing battery use. This also helps smartphone manufacturers avoid compromising their designs with unpleasant aliasing effects – an effect that causes different signals to become indistinguishable when sampled at lower ODRs.

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