STMicroelectronics LIS2DW12 new 3-axis accelerometer featuring high resolution, ultra-low-power, housed in a 2x2x0.7mm package

LIS2DW12 is the new 3-axis high-performance 14-bit accelerometer with an ultra-low-power design.

The LIS2DW12 has 16-bit output resolution and can be set to prioritize low power consumption less than 1μA or low-noise performance down to 90μg/√Hz with five settings in either mode.

Thanks to its measurement accuracy and flexibility, the LIS2DW12 is particularly suitable for next-gen applications from healthcare, fitness and gaming to industrial sensing and environmental monitoring.

Advanced Features

Enhanced flexibility with embedded FIFO

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

Higher thermal stability

  • Over the entire operating temperature range from -40 to +85°C

Ultra-low power consumption

  • High-performance mode:
    • 90μA @ ODR = 12.5 to 1600Hz
  • Low-power mode:
    • 5μA @ ODR = 100Hz
    • 3μA @ ODR = 50Hz
    • 1μA @ ODR = 12.5Hz
    • 0.38μA @ ODR = 1.6Hz
  • Power-down mode: 50nA

Advanced digital features

  • Dedicated internal engine to process motion and acceleration detection:
    • Free-fall wakeup
    • 6D/4D orientation
    • Tap and double-tap recognition
    • Activity/inactivity recognition
    • Portrait/landscape detection
Key Features
  • Acceleration range: ±2/±4/±8/±16g
  • Multiple operating modes with multiple bandwidths
  • 32-level FIFO
  • Noise density (accel.): 90μg/√Hz
  • Very low noise down to 1.3mg RMS in low power mode
  • 16-bit output resolution
  • Ultra-low power consumption
  • Power-down mode: 50nA
  • Low-power mode: < 1μA @ ODR = 12.5Hz
  • Supply voltage range: 1.62 to 3.6V
  • Temperature range: -40 to +85°C
  • I²C/SPI digital interfaces
  • LGA-12 package (2 x 2 x 0.7mm)
Key Applications
  • Motion detection for wearables
  • Gesture recognition and gaming
  • Motion-activated functions and user interfaces
  • Display orientation
  • Tap/double-tap recognition
  • Free-fall detection
  • Smart power saving for handheld devices
  • Impact recognition and logging
  • Hearing aids
  • Portable healthcare devices
  • Wireless sensor nodes
  • Motion-enabled metering devices

The X-NUCLEO-IKS01A2 is a motion MEMS and environmental sensor expansion board for the STM32 Nucleo.

It is pin-to-pin compatible with former devices in the same package.

 

The STEVAL-MKI179V1 is an adapter board designed to facilitate the evaluation of MEMS devices in the LIS2DW12 product family. The board offers an effective solution for fast system prototyping and device evaluation directly within the user’s own application.