STMICROELECTRONICS LIS2DW12 MEMS 3-Axis Accelerometer, Digital, LGA

The STMICROELECTRONICS LIS2DW12TR is a high-performance, ultra-low-power 3-axis 'femto' accelerometer, representing the cutting edge of MEMS motion sensing technology. Built on a robust and mature micromachining process, it delivers exceptional reliability and precision in a compact form factor.

This digital accelerometer features user-selectable full-scale ranges of ±2g, ±4g, ±8g, and ±16g, offering great flexibility for different application sensitivity requirements. It measures acceleration with a configurable output data rate from 1.6Hz up to 1600Hz. A key advantage is its integrated 32-level FIFO (first-in, first-out) buffer, which allows data storage to minimise host processor intervention and improve overall system efficiency.

Designed for extreme energy efficiency, it operates from a supply voltage of 1.62V to 3.6V. Power consumption is remarkably low: just 50nA in power-down mode and below 1µA in active low-power mode. It also boasts very low noise performance, down to 1.3mg RMS in low-power mode, ensuring accurate motion detection.

Key Features & Specifications

• Ultra-Low Power: Ideal for battery-powered devices with 50nA power-down current.
• Low Noise: As low as 1.3mg RMS for precise measurements.
• High-Speed Interface: Supports both I²C and SPI digital output interfaces.
• High Resolution: 16-bit data output for detailed motion analysis.
• Integrated Features: Includes an embedded temperature sensor and independent I/O supply.
• Robust Design: Features 10000g high shock survivability for durability.
• Smart Functions: Supports Android stationary detection, motion detection, and tap/double-tap recognition.
• Package: Housed in a 12-ball LGA package, operating from -40°C to +85°C.