The AXO®305 represents a cutting-edge single-axis closed-loop digital MEMS accelerometer, boasting an input range of ± 5g. With an impressive one-year composite bias repeatability of just 1mg, it is perfectly suited for integration into Inertial measurement Units (IMUs), Inertial Navigation Systems (INS), and Motion Reference Units (MRUs), facilitating precise navigation and positioning for drones and robotic systems.
This compact and low-SWaP accelerometer serves as an excellent alternative to larger and more expensive quartz accelerometers. It features a 24-bit digital SPI interface, simplifying integration and minimizing the number of components required in the Bill of Materials (BOM).
Additionally, the hermetically sealed design incorporates a self-test function that allows for initial verification of the sensor’s performance and ensures ongoing operational integrity.
Performance Highlights
- Single-axis in-plane accelerometer with a ± 5 g range
- Composite bias repeatability of 1 mg over one year
- scale factor non-linearity of 50 ppm
- Vibration rejection capability of 20 μg/g²
- Noise density measured at 10 µg/√Hz
- Latency of 2 ms
Distinctive Features
- 24-bit digital SPI communication interface
- Initial and ongoing self-test functionality
- Factory calibration across temperature ranges
- Hermetic ceramic surface-mount device (SMD) package
- Not classified under dual-use export regulations
- Compliant with REACH and RoHS standards
Potential Applications
- IMUs and INS for GNSS-supported navigation in both manned and unmanned ground vehicles
- MRUs for controlling ship motion and dynamic positioning
- Stabilization for platforms, antennas, and cranes
- Motion control systems for underwater vehicles
- IMUs and INS for navigation in Autonomous Underwater Vehicles (AUVs) and Remotely Operated Vehicles (rovs)
- IMUs/INS for GNSS-assisted train navigation and positioning
- IMUs for high-precision robotics applications
| Dimensions | 12 x 12 x 5.5 mm |
| Weight | 1.4g |
| Full-scale Acceleration Range | ± 5g |
| bandwidth | 120 Hz |
| One-Year Composite Bias Repeatability | 1 mg |
| One-Year Composite Scale Factor Repeatability | 1000 ppm |
| Bias Instability (Allan variance) | 4 μg |
| velocity Random walk (Allan variance) | 0.006 m/s/√hr |
| Noise Density | 10 μg/√Hz |
| Vibration Rectification Error | 20 µg/g² |
| Broadband Resolution | 100 μg |
