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®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.
Leveraging best in-class bias repeatability and scale factor repeatability, AXO® accelerometers are the perfect candidate to sense acceleration in demanding 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.
Seamless and cost-effective system integration
Our AXO®300 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®300 closed-loop digital MEMS accelerometers sensors are ideally complemented by our GYPRO®4000 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
- 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®315 | AXO®301 | AXO®305 |
---|---|---|---|---|
Input range | g | ± 14 | ± 1 | ± 5 |
Digital resolution | µg/LSB | 2 | 1 | 1 |
Operating temperature range | °C | -55 to +105 | -40 to +85 | -40 to +85 |
Bandwidth | Hz | >300 | 15* | 120* |
Noise density | μg/√Hz | 15 | 8 | 8 |
Broadband resolution | μg rms | 328 | 50 | 100 |
Latency | ms | 1 | 20* | 2* |
Vibration Rectification Error | μg/g² | 20 | 20 | 20 |
1 year composite bias repeatability | mg | 1 | 1 | 1 |
Bias instability (Allan variance) | μg | 4 | 4 | 4 |
Residual bias temperature error | mg | 0.5 | 0.5 | 0.5 |
Bias in-run stability | μg | 15 | 15 | 15 |
Long Term Bias Repeatability | mg | 0.4 | 0.4 | 0.4 |
1 year composite scale factor repeatability | ppm | 600 | 600 | 600 |
Scale Factor non linearity | ppm | 80 | 80 | 80 |
Residual scale factor temperature error | ppm | 400 | 400 | 400 |
Data Rate | Hz | 2500 | 900** | 2500** |
Power Supply | V | 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 |
Status | Production | Pre-production | Pre-production |
*Customizable **User configurable 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 Leonardo platform. For USB interface, simply purchase an Arduino Leonardo board, plug it on the AXO®-EVB3 and download Arduino software & drivers.

AXO® Evaluation Board
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Evaluation Tool – Tutorial – Installation and Programmation of the Evaluation Kit

Evaluation Tool – Tutorial – Software