Tronics 
Closed-loop Digital SMD MEMS Accelerometers
Miniature, closed-looped digital SMD MEMS accelerometers
with high bias and scale factor repeatability for dynamic applications
Best-in-class performances for demanding applications
AXO® 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® sensors extremely linear and insensitive to vibrations.
Leveraging best in-class bias repeatability and scale factor repeatability, AXO® is the perfect candidate to sense acceleration in demanding environments.
The unrivalled noise level and excellent bias stability make AXO® an industry-leading sensor solution to build IMU (Inertial Measurement Unit), GNSS-aided positioning, navigation, precision attitude and motion control systems.
Seamless and cost-effective system integration
Our AXO® closed-loop 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 factors, 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 acceleration and angular rate sensing with high bias stability and high sensitivity constraints, the AXO® closed-loop digital MEMS accelerometers sensors are ideally complemented by our GYPRO® closed-loop gyros that pave the way to a new generation of high performance multi-axis sensors solutions.
Key features
- Single axis in-plane acceleration sensor
- Closed-loop architecture for best-in class vibration rejection and linearity
- 24-bit digital SPI interface
- Hard-coded electronics, no software
- Initial and continuous self-test
- Hermetic ceramic SMD package
- Factory-calibrated
- Non classified under dual-use export control
Downloads
| Performance | Unit | AXO®315 |
|---|---|---|
| Input Range | g | ±14 |
| Operating temperature range | °C | -55 to +105 |
| 1 year composite bias repeatability | mg | 1 |
| Vibration Rectification Error | μg/g² | 20 |
| Bias instability (Allan variance) | μg | 4 |
| Residual bias temperature error | mg | ±0.5 |
| Bias in-run stability | μg | 15 |
| Noise density | μg/√Hz | 15 |
| Long Term Bias Repeatability | mg | 0.4 |
| 1 year composite scale factor repeatability | ppm | 600 |
| Scale Factor non linearity | ppm | 100 |
| Residual scale factor temperature error | ppm | ±400 |
| Bandwidth | Hz | >300 |
| Data Rate | Hz | 2500 |
| Power Supply | V | 5 |
| Size (L x l x h) | mm | 12 x 12 x 5.5 |
| Status | Pre-series Sampling now Contact us |
Custom configuration upon request, please contact us.
Evaluation boards
To facilitate the evaluation of AXO® acceleration sensors, Tronics has designed the AXO®-EVB3, an evaluation board compatible with Arduino platform. For USB interface, simply purchase an Arduino Yùn board, plug it on the AXO®-EVB3 and download Arduino software & drivers
AXO® Evaluation Board
Downloads
- AXO® Accelerometer Evaluation Board - User Manual
- Tronics Accelerometer Evaluation Kit - Quick Start Guide
- Tronics Accelerometer Evaluation Tool - Software User Manual
- Tronics Accelerometer Evaluation Tool Software
- Arduino IDE & Drivers
- Arduino Library Firmware
- Arduino Library Firmware - Github
- How to buy Arduino Yùn board
Movies
Evaluation Tool – Tutorial – Installation and Programmation of the Evaluation Kit
Evaluation Tool – Tutorial – Software