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

Performance Unit AXO®301 AXO301 high resolution MEMS accelerometer AXO®305 high performance accelerometer axo305 AXO®314 Tronics AXO314 accelerometer AXO®315 TRONICS_AXO315 accelerometer AXO®315T0 High-Temperature MEMS Accelerometer for Energy
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 to +150
Bandwidth Hz 15* 120* >300 >300 150
Noise density μg/√Hz 9 10 15 15 10 @ RT
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 3 @ RT 5 @ 150°C
Residual bias temperature error mg 0.5 0.5 0.5 0.5 0.8
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.

Tronics AXO315 digital force rebalance MEMS accelerometer Evaluation Kit

AXO® Evaluation Board

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MEMS accelerometers evaluation tools tutorials

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

Evaluation Tool – Tutorial – Software