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Ultra-low-power accelerometer from STMicroelectronics features embedded FIFO

 

The LIS3DH 3-axis accelerometer merges the advantage of enhanced embedded features, such as sleep-to-wakeup and return-to-sleep functions, with a significant reduction in power consumption - 90% lower than available solutions on the market.

The device contains a temperature sensor, three analog-to-digital converter channels, a programmable FIFO memory block and two programmable interrupt signals.

The LIS3DH is the first device of a new family of accelerometers, featuring extremely low power consumption (up to 2 µA) and smart features such as sleep-to-wakeup and return-to-sleep functions. It offers full scales of ±2g/±4g/±8g/±16g dynamically selectable by the user. Compared to previous accelerometers, the LIS3DH includes a 32-level FIFO buffer, a temperature sensor and an analog-to-digital converter.

Features
  Ultra-low-power consumption up to 2 µA
  Embedded 96-level FIFO of 16-bit data output
  Embedded temperature sensor
  6D/4D orientation detection
  ±2g/±4g/±8g/±16g dynamically selectable full-scale
  Wide supply voltage: 1.7 to 3.6 V
  I²C/SPI digital output interface (16-bit data output)
  2 independent programmable interrupt generators
  Automatic programmable sleep-to-wakeup and return-to-sleep functions
  Free-fall and motion detection
  Embedded ADC converter
  Embedded self-test
 
Benefits
  The extremely low power consumption maximizes battery life
  Embedded FIFO for smart data storage and power saving
  Temperature detection for advanced thermal drift compensation
  Three embedded ADC converters with dedicated PINs

Click here to view the datasheet

For more information, or details on the full range of STMicroelectronics products available from Anglia, please call +44 (0)1945 474747 or email info@anglia.com

Alternatively, click on this link to go to the main STMicroelectronics section where you can view other news articles and product data.

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This news article was originally published in September 2010.

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