STMicroelectronicsLIS2DUX12Accelerometers

Ultralow-power accelerometer with AI & anti-aliasing

The LIS2DUX12 is a smart, digital, 3-axis linear accelerometer whose MEMS and ASIC have been expressly designed to combine the lowest current consumption possible with features such as always-on anti-aliasing filtering, a finite state machine (FSM) and machine learning core (MLC) with adaptive self-configuration (ASC).

The FSM and MLC with ASC deliver outstanding always-on, edge processing capabilities to the LIS2DUX12. The LIS2DUX12 MIPI I3C® slave interface and embedded 128-level FIFO buffer complete a set of features that make this accelerometer a reference in terms of system integration from a standpoint of the bill of materials, processing, or power consumption.

The LIS2DUX12 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 800 Hz.

The LIS2DUX12 has a dedicated internal engine to process motion and acceleration detection including free-fall, wake-up, single/double/triple-tap recognition, activity/inactivity, and 6D/4D orientation.

The LIS2DUX12 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 and Benefits:

• Acceleration range: ±2/±4/±8/±16 g
• Enhanced flexibility with embedded FIFO up to 128 samples
• Low current consumption
  • 2.7µA at 1.6Hz (ultra-low power mode)
  • 6.2µA at 50Hz with Anti-Alias Filter (lower power mode)
  • 10.8µA with Anti-Alias Filter (high performance mode)
• Tap / Double-tap recognition / Wake up detection / Free fall detection / 6D/4D
• orientation and Activity / Inactivity
• Pedometer
• Embedded machine learning core (MLC)
• Programmable finite state machine (FSM)
• I3C interface option

Applications and Use Cases:

• IoT / Wearable devices (wristband and smart watches)
• Game controllers
• Hearing aids and portable healthcare devices
• True wireless stereo
• Wireless sensor nodes
• Motion-activated user interfaces (screen rotation, tap, double tap)
• Asset trackers - Shock/Wake-up
• Alarms - Tilt / Wake-up