LIS3DHTR Sensors, Transducers

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1. Description

The LIS3DH is an ultra-low-power highperformance three-axis linear accelerometer belonging to the “nano” family, with digital I2C/SPI serial interface standard output. The device features ultra-low-power operational modes that allow advanced power saving and smart embedded functions.

The LIS3DH has dynamically user-selectable full scales of 2g/±4g/8g/16g and is capable of measuring accelerations with output data rates from 1 Hz to 5.3 kHz. The self-test capability allows the user to check the functioning of the sensor in the final application. The device may be configured to generate interrupt signals using two

independent inertial wake-up/free-fall events as well as by the position of the device itself.

Thresholds and timing of interrupt generators are programmable by the end user on the fly. The LIS3DH has an integrated 32-level first-in, firstout (FIFO) buffer allowing the user to store data in order to limit intervention by the host processor.

The LIS3DH is available in small thin plastic land grid array package (LGA) and is guaranteed to operate over an extended temperature range from -40 °C to +85 °C.

2. Features

   1. Wide supply voltage, 1.71 V to 3.6 V

   2. Independent IO supply (1.8 V) and supply voltage compatible

   3. Ultra-low-power mode consumption down to 2 μA

   4. 2g/±4g/8g/16g dynamically selectable full scale

   5. I 2C/SPI digital output interface

   6. 16-bit data output

   7. 2 independent programmable interrupt generators for free-fall and motion detection

   8. 6D/4D orientation detection

   9. Free-fall detection

 10. Motion detection

 11. Embedded temperature sensor

 12. Embedded self-test

 13. Embedded 32 levels of 16-bit data output FIFO

 14. 10000 g high shock survivability

 15. ECOPACK®, RoHS and “Green” compliant

3. Applications

   1. Motion activated functions

   2. Free-fall detection

   3. Click/double-click recognition

   4. Intelligent power saving for handheld devices

   5. Pedometers

   6. Display orientation

   7. Gaming and virtual reality input devices

   8. Impact recognition and logging

   9. Vibration monitoring and compensation

4. Pin configuration

5. Pin Description