STMicroelectronics LIS2DS12 MEMS digital output sensor

Ultra low-power high performance 3-axes "pico" accelerometer.

The LIS2DS12 is an ultra-low-power high-performance three-axis linear accelerometer belonging to the “pico” family which leverages on the robust and mature manufacturing processes already used for the production of micromachined accelerometers.

The LIS2DS12 has user-selectable full scales of ±2g/±4g/±8g/±16g and is capable of measuring accelerations with output data rates from 1 Hz to 6400 Hz.

The LIS2DS12 has an integrated 256-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 LIS2DS12 has a dedicated internal engine architecture in order to process internally motion and acceleration detection including free-fall, wakeup, single and double-tap detection, activity-inactivity, portrait and landscape detection, step counter and step detection along with significant motion detection.

The LIS2DS12 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.

Key features

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Additional features

• Supply voltage, 1.62 V to 1.98 V
• Independent IOs supply (1.8 V) and supply voltage compatible
• Ultra-low power consumption
• ±2g/±4g/±8g/±16g full scale
• High-speed I2C/SPI digital output interface
• Low noise
• 16-bit data output
• Embedded temperature sensor
• Self-test
• 256-level FIFO
• 10000 g high shock survivability
• ECOPACK®, RoHS and “Green” compliant

Applications

• Motion-activated functions and user interfaces
• Gesture recognition and gaming
• Pedometer, step detector and step counters
• Display orientation
• Sensor hub function
• Tilt function
• Tap/double-tap recognition
• 6D/4D orientation
• Free-fall detection
• Smartpower saving for handheld devices
• Impact recognition and logging