High performance digital MEMS accelerometers
High performance digital MEMS accelerometers
AXO®300 is a unique family of high performance closed-loop digital MEMS accelerometers housed in a SMD package. While open-loop MEMS accelerometers tend to demonstrate poor performances in harsh conditions, the built-in force-rebalance architecture makes our AXO®300 sensors extremely linear and insensitive to vibrations.
High stability and repeatability for dynamic applications
Leveraging best in-class bias repeatability and scale factor repeatability, AXO® precision MEMS accelerometers are the perfect candidates to sense acceleration in demanding temperature and vibrations environments.
The unrivalled noise level and excellent bias stability make AXO®300 an industry-leading sensor solution to build IMU (Inertial Measurement Unit), MRU (Motion Reference Unit), GNSS-aided positioning, navigation, precision attitude, motion control and tilt measurements systems.
Low-SWaP alternative to quartz accelerometers
Our AXO®300 closed-loop high performance digital MEMS accelerometers sensors feature a 24-bit SPI digital interface and continuous self-test to speed-up their integration compared to conventional analog sensors solutions.
Unlike analog tactical-grade quartz accelerometers that exhibit bulky form factor, our high performance inertial sensors are housed in a hermetic SMD package to reduce the overall SWaP-C (Size, Weight, Power and Cost). In addition, our factory-calibration step removes the need for costly and complex temperature modeling at system-level.
For applications requiring both precise acceleration and angular rate sensing with high bias stability and high sensitivity constraints, the AXO®300 digital MEMS accelerometers sensors are ideally complemented by our GYPRO®4000 high stability digital MEMS gyros that pave the way to a new generation of miniature high performance multi-axis sensors solutions.
Key features
- Single axis in-plane acceleration sensor
- Input range from ± 1 g to ±14 g
- Closed-loop architecture for best-in class vibration rejection and linearity
- 24-bit digital SPI interface
- Initial and continuous self-test
- Hermetic ceramic SMD package
- Non classified under dual-use export control
| Performance | Unit | AXO®301
| AXO®305
| AXO®314
| AXO®315
| AXO®315T0 AXO®315T1 |
|---|---|---|---|---|---|---|
| Input range | g | ± 1 | ± 5 | ± 14 | ± 14 | ± 14 |
| Digital resolution | µg/LSB | 1 | 1 | 2 | 2 | 2 |
| Operating temperature range | °C | -40 to +85 | -40 to +85 | -40 to +85 | -55 to +105 | -30 °C to +150 °C (AXO315T0) -30 °C to +175 °C (AXO315T1) |
| Bandwidth | Hz | 15* | 120* | >300 | >300 | 150 |
| Noise density | μg/√Hz | 9 | 10 | 15 | 15 | 18 μg/√Hz @ 150 °C (AXO315T0) 20 μg/√Hz @ 175 °C (AXO315T1) |
| Broadband resolution | μg rms | 50 | 100 | 328 | 328 | 100 |
| Latency | ms | 20* | 2* | 1 | 1 | 2 |
| Vibration Rectification Error | μg/g² | 20 | 20 | 20 | 20 | 20 |
| 1 year composite bias repeatability | mg | 1 | 1 | 1 | 1 | |
| Bias instability (Allan variance) | μg | 3 | 3 | 4 | 4 | 5 μg @ 150 °C (AXO315T0) 10 μg @ 175 °C (AXO315T1) |
| Residual bias temperature error | mg | 0.5 | 0.5 | 0.5 | 0.5 | 0.8 mg (AXO315T0) 1.7 mg (AXO315T1) |
| Bias in-run stability | μg | 15 | 15 | 15 | 15 | 15 @ RT |
| Long Term Bias Stability | mg | 0.14 | 0.14 | 0.4 | 0.4 | 0.4 |
| 1 year composite scale factor repeatability | ppm | 1000 | 1000 | 600 | 600 | |
| Scale Factor non linearity | ppm | 80 | 50 | 80 | 80 | 80 |
| Residual scale factor temperature error | ppm | 500 | 500 | 400 | 400 | 500 |
| Data Rate | Hz | 950** | 2500** | 2500 | 2500 | 2500** |
| Power Supply | V | 5 | 5 | 5 | 5 | 5 |
| Size (L x l x h) | mm | 12 x 12 x 5.5 | 12 x 12 x 5.5 | 12 x 12 x 5.5 | 12 x 12 x 5.5 | 12 x 12 x 5.5 |
| Status | Production | Production | Production | Production | Production |
*Customizable **User configurable Custom configuration upon request, please contact us.
MEMS Accelerometers Evaluation Boards
To speed-up the evaluation of our AXO® MEMS precision accelerometers, Tronics has designed the AXO®-EVB3, an evaluation board compatible with Arduino Leonardo platform. Simply plug your Arduino board on the AXO®-EVB3, connect the USB interface and download Arduino software & drivers for a swift data acquisition.
AXO® Evaluation Board
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MEMS accelerometers evaluation tools tutorials
Evaluation Tool – Tutorial – Installation and Programmation of the Evaluation Kit
Evaluation Tool – Tutorial – Software