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NPI Body

MIS2DH

MEMS

STM-LIS2DW12TR

3-axis accelerometer for medical/healthcare applications, ±2g/±4g/±8g/±16g user selectable full-scale

The MIS2DH is an ultra-low-power high-performance three-axis linear accelerometer with digital I2C/SPI serial interface standard output.

The MIS2DH has 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 MIS2DH is a device that has been conceived for medical and healthcare applications whenever the sensor itself is not used as a life-sustaining component.

The device may be configured to generate interrupt signals by two independent inertial wake-up/free-fall events as well as by the position of the device itself.

The self-test capability allows the user to check the functionality of the sensor in the final application.

The MIS2DH is available in a small thin plastic land grid array package (LGA) and is guaranteed to operate over an extended temperature range from -40 °C to +85 °C.


Features

  • Wide supply voltage, 1.71 V to 3.6 V
  • Independent IOs supply (1.8 V) and supply voltage compatible
  • Ultra-low power consumption down to 2 Μa
  • ±2g/±4g/±8g/±16g selectable full scales
  • I2C/SPI digital output interface
  • 3 operating modes: low-power, normal, high-resolution mode
  • 2 independent programmable interrupt generators for free-fall and motion detection
  • Motion detection & free-fall detection
  • Embedded temperature sensor
  • ECOPACK®, RoHS and “Green” compliant


Applications

  • Activity monitoring and posture detection in medical and healthcare applications, including body-implantable products
  • Remote patient monitoring and man-down alerts
  • Diagnostic and treatment positioning equipment
  • General motion-activated functions in the medical domain


Benefits

  • Ultra-low power consumption
  • Temperature range from -40 °C to +85 °C

 

Block diagram

 

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