Introducing the AXO315: A Cutting-Edge MEMS Accelerometer from Tronics Microsystems

Tronics Microsystems has announced the availability of its AXO315 miniature single-axis closed-loop digital MEMS accelerometer through major distributors including Digikey, Mouser, Farnell, Newark, and Element 14. Alongside this, an Arduino-based evaluation kit has been launched to assist developers and system integrators in their projects.

Extraordinary Performance in Challenging Environments

The AXO315 accelerometer operates within a range of ±14 g and is specifically engineered for high accuracy and dependability in demanding conditions, such as those encountered in unmanned aerial vehicles (UAVs) and robotics. This sensor boasts a remarkable one-year composite repeatability of 1 mg and a scale factor repeatability of 600 ppm across a temperature spectrum of -55 °C to +105 °C, even under 4 g vibrations. Its design incorporates advanced vibration rejection capabilities and outstanding Allan variance characteristics, featuring a basis instability of 4 µg, a velocity random walk of 0.006 m/s/√h, and an impressively low noise level of 15 µg/√Hz, ensuring high resolution and minimal error margins.

Ideal for SWaP-Constrained Applications

The AXO315S specifications make it especially suitable for applications where size, weight, and power (SWaP) are critical, such as Inertial Measurement units (IMUs) and Inertial Navigation Systems (INS) that support GNSS-aided positioning and navigation for unmanned vehicles.

Innovative Design features

This accelerometer features a force-rebalance architecture, a 24-bit digital SPI interface, and comes in a surface-mount device (SMD) package. Its performance rivals that of traditional analog quartz accelerometers and mechanical inclinometers, but it offers significant advantages in terms of size and weight, along with simplified integration compared to analog alternatives.

Complementing Tronics’ High-Performance Gyros

The AXO315 enhances Tronics Microsystems’ existing portfolio of high-performance digital gyros, which are essential for advanced IMUs and INS. Housed in a lightweight hermetic SMD J-lead ceramic package weighing just 1.4 g and measuring 12 x 12 x 5 mm, it facilitates cost-effective assembly and reliability on printed circuit boards (PCBs), even in rapidly fluctuating temperature environments.

Manufacturing and Evaluation

All AXO315 accelerometers are produced,tested,and calibrated at Tronics Microsystems’ state-of-the-art facility located in Grenoble,France. Developers can evaluate the sensors using the dedicated Arduino-based evaluation kit, which offers enhanced testing capabilities, including output reading, recording, recalibration, and digital self-testing functionalities.