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Tronics Microsystems


High Resolution ±1g MEMS Accelerometer with Digital Interface

High resolution and high stability in vibrating environments

AXO®301 is a single-axis, high resolution, closed-loop MEMS accelerometer with ± 1 g input range that offers a digital, cost-effective, and low-SWaP alternative to quartz accelerometers.

AXO®301 is perfectly suited to acceleration and inclination measurements for applications operating in highly vibrating environments, such as high-end industrial and railway systems.

The 24-bit digital SPI interface eases the integration of AXO®301 into high performance inclinometers and motion control systems. The built-in self-test ensures initial verification of the sensor’s integrity and continuous in-operation functionality test.

Key performances

  • ±1 g range, single-axis in-plane accelerometer
  • Resolution: 50 μg
  • Scale factor non linearity: 80 ppm
  • 1 year composite bias repeatability: 1 mg
  • Bandwidth: 15 Hz (configurable upon request)
  • Vibration rejection: 20 μg/g²
  • Compliant with EN61373 railway standard for vibrations and shocks

Key features

  • 24-bit digital SPI interface
  • Initial and continuous self-test
  • Factory-calibrated over temperature
  • Hermetic ceramic SMD package
  • Non classified under dual-use export control
  • REACH and RoHS compliant


  • Acceleration and deceleration measurement
  • Train odometry and Automated Train Control
  • Train performance testing
  • Train tilt measurement
  • Static and dynamic inclinometers
  • Tilt sensors
  • Motion control of construction machinery

Download the full PDF here.

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