Rutronik presents accelerometer from STM

21st April 2017

Rutronik

Enaie Azambuja

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Datasheet

With the LIS2DW12, distributor Rutronik presents the member of STMicroelectronics’ low-power, high-performance MEMS product family. Taking context sensing in IoT and wearable devices to the next level, the 3-axis accelerometer delivers accuracy, flexibility, and energy savings by supporting multiple low-power and low-noise settings in a 2x2x0.7mm package. The LIS2DW12 has 16-bit output and can be set to prioritise low power consumption or low-noise performance, with five settings in either mode.

A specific feature coupled with four settings in each mode save waking the system check for data, and allow efficient single-byte transfers thereby further minimising system power consumption and helping extend battery life.

Features that support system-level power savings include a 32-level FIFO, a built-in temperature sensor, and a programmable interrupt to freefall, wake up, activity/inactivity, 6D/4D orientation detection, and tap/double-tap detection.

Drawing as little as 50nA in standby, or 380nA in low-power mode at 1.6Hz Output Data Rate, the LIS2DW12 adds negligible load on the battery. The supply-voltage range of 1.62 up to 3.6V allows extended operation from small coin or button cells.

Noise density down to 90µg/√Hz is at least 25% lower than similar devices. This improves the measurement accuracy in next-gen applications from healthcare, fitness, and gaming to industrial sensing and environmental monitoring.