Inertial measurement unit supplies accurate, real-time data

15th June 2015

Mick Elliott

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The BMI160 6-axis inertial measurement unit (IMU) is a low-power, low-noise unit designed for mobile applications that require highly accurate, real-time sensor data, such as augmented reality, immersive gaming and indoor navigation. The BMI160’s tiny 2.5 x 3.0 x 0.83mm, 14-pin LGA package and built-in configurable power management unit (PMU) make it the smallest inertial measurement unit in the market.

The IMU which is available from Mouser Electronics, features a 16-bit, 3-axis accelerometer and an ultra-low power 16-bit, 3-axis gyroscope that consume only 950 µA in full operation without internal duty cycling — ideal for always-on applications like wearable devices.

Further supporting always-on applications, a configurable on-chip interrupt engine provides context awareness for operations such as any- or no-motion detection, tap/double tap sensing, orientation detection, free-fall, or shock events.

The IMU also offers 6- and 9-axis sensor fusion, synchronizing data with an external sensor, such as a magnetometer.

It is equipped with an integrated 1024 byte FIFO buffer that supports low-power applications and prevents data loss in non-real-time systems.

The IMU offers a wide supply voltage (V_DD) range from 1.7V to 3.6V, a flexible digital primary interface to connect to host over I2C or SPI, and compatibility with Android 4.4 (KitKat) and Windows 8.1.

The Bosch Sensortec BMI160 6-Axis Inertial Measurement Unit is suited for augmented reality, immersive gaming, personal health and fitness, indoor navigation and any other sensor-based applications requiring context awareness.