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STMicroelectronics LIS2DW12

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STMicroelectronics LIS2DW12 – ultra low-power high performance 3-axes femto accelerometer

The LIS2DW12 is an ultra-low-power highperformance three-axis linear accelerometer belonging to the “femto” family which leverages on the robust and mature manufacturing processes already used for the production of micromachined accelerometers.

The LIS2DW12 has user-selectable full scales of +-2g/+-4g/+-8g/+-16g and is capable of measuring accelerations with output data rates from 1.6 Hz to 1600 Hz.

The LIS2DW12 has an integrated 32-level first-in, first-out (FIFO) buffer allowing the user to store data in order to limit intervention by the host processor.

The embedded self-test capability allows the user to check the functioning of the sensor in the final application.

The LIS2DW12 has a dedicated internal engine to process motion and acceleration detection including free-fall, wakeup, highly configurable single/double-tap recognition, activity/inactivity, portrait/landscape detection and 6D/4D orientation.

The LIS2DW12 is available in a small thin plastic land grid array package (LGA) and it is guaranteed to operate over an extended temperature range from -40 °C to +85 °C.

Features

  • Wide supply voltage: 1.62 to 3.6V
  • Independent IO supply
  • Ultra low power consumption:
  • 50nA in low power mode
  • below 1uA in active low-power mode
  • Very low noise: down to 1.3 mg RMS in low-power mode
  • Multiple operating modes with multiple bandwidths
  • 2g/4g/8g/16g full scale
  • Single data conversion on demand
  • 32 level FIFO
  • Embedded temperature sensor
  • 10000g shock survivability
  • Ultra small: 2.0 x 2.0 x 0.7mm LGA package
     

Benefit

  • Ultra low power, high-performance and small package combined into a single product.
     

Applications

  • Motion detection for wearables
  • Gesture recognition and gaming
  • Motion-activated functions and user interfaces
  • Display orientation
  • Tap/double-tap recognition
  • 6D/4D orientation
  • Free-fall detection
     

Block diagram

StMicroelectronics LIS2DW12 product image

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