Home > STMicroelectronics outlines always-on 6-axis ultra-performance accelerometer/gyroscope combo that drops the power/space bar

STMicroelectronics outlines always-on 6-axis ultra-performance accelerometer/gyroscope combo that drops the power/space bar

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Global semiconductor leader STMicroelectronics introduces the first iNEMO Ultra product, an always-on, high-performance 6-axis combination accelerometer and gyroscope that sets new standards for device and system power efficiency, signal noise, and performance in motion sensors.

Working with ST’s ultra-low-power STM32 microcontrollers, the LSM6DS3 accelerometer and gyroscope combo will create new possibilities for the development of battery-powered smart sensor systems to be embedded in mobile and wearable devices and innovative objects for the Internet of Things (IoT).

Measuring 2.5mm x 3.0mm x 0.8mm, the tiny iNEMO Ultra 6-axis inertial-sensor combo (3-axis accelerometer/3-axis gyroscope) delivers industry-leading noise performance while effectively managing system power with state-of-the-art technology that has tested to be typically 20% more energy-efficient than the best alternative combos in low-power mode, simultaneously delivering excellent performance and protecting valuable board real estate.

Featuring the largest ‘smart’ FIFO memory (8kbytes), at least twice as large as anything in the market, the LSM6DS3 uses the flexible memory to save and batch more data before waking up the system processor, saving overall system power. ST has also leveraged its robust and mature manufacturing processes for the production of its industry-leading micro-machined accelerometers and gyroscopes, while manufacturing its IC interfaces using CMOS technology. This choice supports trimming of dedicated circuits to better match sensing-element characteristics.

According to Benedetto Vigna, ST Executive Vice President and General Manager of the Analog, MEMS & Sensors Group, ST continues to raise the bar for motion-sensor performance with the new 6-axis Ultra combo designed to operate at the lowest power and best noise density in the market, and making Internet-of-Things devices far more efficient and convenient.

Delivered as an optimised 2-chip system-in-package featuring high-performance 3-axis digital accelerometer and 3-axis digital gyroscope with integrated power-efficient modes down to 0.6mA in always-on working mode, the LSM6DS3 combo combines always-on low-power features with superior sensing precision for best-in-class motion detection and analysis with ultra-low noise.

The LSM6DS3’s event-detection interrupts enable efficient and reliable motion tracking and context awareness that is implemented in hardware, allowing for recognition of free-fall events, 6D orientation, tap and double-tap sensing, activity or inactivity, and wake-up events. With ST’s experience in supporting the requirements of the main operating systems, the LSM6DS3 will be able to efficiently process real, virtual, and batch-mode sensors, saving power and enabling faster system reaction time.

The new iNEMO Ultra 6-axis accelerometer and gyroscope combo is designed to implement in hardware Significant Motion, Tilt, Pedometer Functions, and Time Stamp, and to support the data acquisition of an external magnetometer with both hard and soft iron correction.

The LSM6DS3 will also offer hardware flexibility to connect pins with different mode connections to external sensors to fulfil additional functionalities as a sensor hub, auxiliary SPI (Serial Peripheral Interface), and other vital capabilities.

The LSM6DS3 combo will be available in Q4 2014.

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