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Tronics Microsystems


High Performance ± 5 G MEMS Accelerometer with Digital Interface

Superior bias and scale factor repeatability

AXO®305 is a single-axis, high performance, closedloop digital MEMS accelerometer with ± 5 g input range that offers a digital, cost-effective and lowSWaP alternative to quartz accelerometers.

Its superior 1-year composite bias repeatability of 1 mg makes AXO®305 a perfect candidate for integration into high performance Inertial Measurement Units (IMU), Inertial Navigation Systems (INS) and Motion Reference Units (MRU) for land, railway, marine and subsea applications.

The hermetic ceramic SMD package combined with a 24 bits SPI interface eases the integration of AXO®305 and reduces the BOM. The built-in selftest ensures initial verification of the sensor’s integrity and continuous in-operation functionality test.

Key performances

  • ± 5 g range, single-axis in-plane accelerometer
  • 1 year composite bias repeatability: 1 mg
  • Scale factor non linearity: 80 ppm
  • Vibration rejection: 20 μg/g²
  • Noise density: 8 µg/√Hz
  • Latency: 2 ms

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


  • IMU and INS for GNSS-assisted navigation of manned and unmanned ground vehicles
  • MRU for ship motion control and dynamic positioning
  • Platform, antenna, and crane stabilization
  • Motion control of underwater vehicles
  • IMU and INS for navigation of AUV and ROV
  • IMU / INS for GNSS-assisted train positioning and navigation
  • IMU for precision robotics

Download the full PDF here.

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