Overview
The LIS2DW12, produced by STMicroelectronics, is an ultralow-power, high-performance 3-axis linear accelerometer belonging to the “femto” family. This device leverages robust and mature manufacturing processes for micromachined accelerometers. It is designed for applications requiring low power consumption and high accuracy, making it suitable for a wide range of uses, including wearables, gaming, and motion-activated functions.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Supply Voltage (Vdd) | 1.62 | 1.8 | 3.6 | V |
| I/O Pins Supply Voltage (Vdd_IO) | 1.62 | Vdd+0.1 | V | |
| Supply Current in High-Performance Mode (IddHR) | 90 | µA | ||
| Supply Current in Low-Power Mode (IddLP) at 100 Hz | 5 | µA | ||
| Supply Current in Power-Down Mode (Idd_PD) | 50 | nA | ||
| Full Scale Range | ±2g/±4g/±8g/±16g | |||
| Output Data Rate (ODR) | 1.6 Hz to 1600 Hz | |||
| Resolution | 12-bit to 14-bit | |||
| Temperature Range | -40°C | +85°C | °C | |
| Package | LGA-12 |
Key Features
- Ultralow power consumption: 50 nA in power-down mode, below 1 µA in active low-power mode.
- Very low noise: down to 1.3 mg RMS in low-power mode.
- Multiple operating modes with multiple bandwidths.
- Android stationary detection, motion detection, and highly configurable single/double-tap recognition.
- High-speed I²C/SPI digital output interface.
- Single data conversion on demand.
- 16-bit data output.
- Embedded temperature sensor.
- Self-test capability.
- 32-level FIFO buffer.
- 10000 g high shock survivability.
- ECOPACK and RoHS compliant.
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.
- Hearing aids.
- Portable healthcare devices.
- Wireless sensor nodes.
- Motion-enabled metering devices.
Q & A
- What is the power consumption of the LIS2DW12 in power-down mode?
The power consumption in power-down mode is 50 nA.
- What are the available full scale ranges for the LIS2DW12?
The available full scale ranges are ±2g, ±4g, ±8g, and ±16g.
- What is the temperature range of the LIS2DW12?
The temperature range is from -40°C to +85°C.
- Does the LIS2DW12 have an embedded temperature sensor?
- What are the communication interfaces available for the LIS2DW12?
The device supports high-speed I²C and SPI digital output interfaces.
- What is the resolution of the LIS2DW12?
The resolution ranges from 12-bit to 14-bit depending on the operating mode.
- Does the LIS2DW12 support single data conversion on demand?
- What is the purpose of the self-test feature in the LIS2DW12?
The self-test feature allows checking the sensor functionality without moving it, by simulating a definite input acceleration.
- What is the FIFO buffer capacity of the LIS2DW12?
The LIS2DW12 has a 32-level FIFO buffer.
- Is the LIS2DW12 compliant with environmental standards?
