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

axo high performance mems accelerometer


Input Rangeg±14
Operating temperature range°C-55 to +105
1 year composite bias repeatabilitymg1
Vibration Rectification Errorμg/g²20
Bias instability (Allan variance)μg4
Residual bias temperature errormg±0.5
Bias in-run stabilityμg15
Noise densityμg/√Hz15
Long Term Bias Repeatabilitymg0.4
1 year composite scale factor repeatabilityppm600
Scale Factor non linearityppm100
Residual scale factor temperature errorppm±400
Data RateHz2500
Power SupplyV5
Size (L x l x h)mm12 x 12 x 5.5
Status Pre-series
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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

Tronics AXO315 digital force rebalance MEMS accelerometer Evaluation Kit

AXO® Evaluation Board


GYPRO® Evaluation Tool - Tutorial - Installation and Programmation of the Evaluation Kit
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Evaluation Tool – Tutorial – Installation and Programmation of the Evaluation Kit

GYPRO Evaluation Tool - Tutorial - Software
Play Video

Evaluation Tool – Tutorial – Software

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