AXO®305: High-Performance ±5 g MEMS accelerometer with digital interface
The AXO®305 is a high-performance single-axis closed-loop digital MEMS accelerometer with a ± 5g input range. Featuring an excellent 1-year composite bias repeatability of 1mg, it is ideal for integration into IMUs, INS and MRUs for high-precision navigation and positioning of drones and robotics.
The low-SWaP accelerometer is highly suited as a replacement for bulkier and costlier quartz accelerometers, featuring a 24-bit digital SPI interface for ease of integration and reduction in BOM components.
The hermetically sealed unit also includes a built-in self-test capability that provides initial verification of the sensor’s integrity and continuous in-operation functionality.
Key performances
- ± 5 g range, single-axis in-plane accelerometer
- 1 year composite bias repeatability: 1 mg
- Scale factor non linearity: 50 ppm
- Vibration rejection: 20 μg/g²
- Noise density: 10 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
Applications
- 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
| Size | 12 x 12 x 5.5 mm |
| Weight | 1.4g |
| Full-Scale Acceleration Range | ± 5g |
| Bandwidth | 120 Hz |
| 1 Year Composite Bias Repeatability | 1 mg |
| 1 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 | 20µg/g² |
| Broadband resolution | 100 μg |
