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




TRONICS_AXO315 accelerometer


AXO301 high resolution MEMS accelerometer


high performance accelerometer axo305

Input rangeg± 14± 1± 5
Digital resolutionµg/LSB211
Operating temperature range°C-55 to +105-40 to +85-40 to +85
Noise densityμg/√Hz1588
Broadband resolutionμg rms32850100
Latencyms120* 2*
Vibration Rectification Errorμg/g²202020
1 year composite bias repeatabilitymg111
Bias instability (Allan variance)μg444
Residual bias temperature errormg0.50.50.5
Bias in-run stabilityμg151515
Long Term Bias Repeatabilitymg0.40.40.4
1 year composite scale factor repeatabilityppm600600600
Scale Factor non linearityppm808080
Residual scale factor temperature errorppm400400400
Data RateHz2500900**2500**
Power SupplyV555
Size (L x l x h)mm12 x 12 x 5.512 x 12 x 5.512 x 12 x 5.5
Status ProductionPre-productionPre-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.

Tronics AXO315 digital force rebalance MEMS accelerometer Evaluation Kit

AXO® Evaluation Board

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GYPRO® Evaluation Tool - Tutorial - Installation and Programmation of the Evaluation Kit
Play Video about GYPRO® Evaluation Tool - Tutorial - Installation and Programmation of the Evaluation Kit

Evaluation Tool – Tutorial – Installation and Programmation of the Evaluation Kit

GYPRO Evaluation Tool - Tutorial - Software
Play Video about GYPRO Evaluation Tool - Tutorial - Software

Evaluation Tool – Tutorial – Software