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.

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
Operating temperature range	°C	-55 to +105	-40 to +85	-20 to +70
Bandwidth	Hz	>300	15*	>100*
Noise density	μg/√Hz	15	8	8
Resolution	μg	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	±0.2
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**	1000**
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 Contact us	Prototyping	Specification

*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.