High Stability Digital MEMS Gyro Released for Dynamic Applications

TDK Corporation’s new Tronics GYPRO4300 features a ±300 °/s input measurement range, 200 Hz bandwidth and 1 ms latency with a closed-loop architecture that ensures high linearity and stability in dynamic environments By Caroline Rees / 30 Mar 2023

TDK Corporation has released Tronics GYPRO4300, a high stability and vibration-tolerant digital MEMS gyroscope for dynamic applications.

Featuring a ±300 °/s input measurement range, 200 Hz bandwidth and 1 ms latency with a closed-loop architecture that ensures high linearity and stability in dynamic environments, the GYPRO4300 is the first product reference of Tronics GYPRO4000 new high performance digital MEMS gyro platform.

Precise navigation and positioning in dynamic applications

With a bias instability of 0.5 °/h as typical value (2 °/h maximum) and an Angular Random Walk (ARW) of 0.1 °/√h, GYPRO4300 offers a miniature, digital and low-SWaP high performance MEMS gyro that TDK believes paves the way to a new generation of precise positioning, navigation, and stabilization functions in dynamic applications such as VTOL aircraft and UAVs, marine and subsea systems, railway, land vehicles, borehole drilling and surveying instruments.

Miniature and robust gyro for systems operating under vibration conditions

The closed-loop architecture of Tronics GYPRO4300 offers a strong vibration rejection of 0.5 °/h/g2 under harsh conditions. GYPRO4300 gyros are housed in a miniature, hermetic, ceramic J-lead package that ensures long operational and storage life and guarantees a high compliance with the stringent thermal cycling requirements of critical applications. They embed a fully hard-coded electronics with a 24-bit digital SPI interface for swift integration into Inertial Navigation Systems (INS), Inertial Measurement Units (IMU) as well as Attitude and Heading Reference Systems (AHRS). To minimize mechanical cross-coupling in multi-axis applications, GYPRO4300 is available in 3 frequency ranges.

Low-SWaP, cost-effective and high reliability gyroscope

Thanks to its miniature package and low-power consumption, TDK believes the Tronics GYPRO4300 gyro offers a digital, cost-effective, and low-SWaP alternative to bulky, expensive, and power-consuming solutions like Dynamically Tuned Gyros (DTG) Fiber Optical Gyroscopes (FOG).

Due to its solid-state architecture that reduces the number of internal components and system complexity, GYPRO4300 demonstrates an MTBF higher than 1,000,000 hours, more than 10 times better than incumbent DTG and FOG with similar performances. In addition, its built-in self-test ensures both an initial verification of the sensor’s integrity and a continuous in-operation functionality test.

GYPRO4300 gyros are ideally complemented by high performance Tronics AXO300 digital accelerometers that share the same SMD J-lead ceramic package (12 x 12 x 5 mm) and same digital interface to enable low-cost integration, assembly, and reliability on PCB, even in fast-changing temperature conditions.

The GYPRO4000 gyros platform will be soon extended with new product references tailored to application-specific requirements, such as improved bias stability, lower ARW and lower in-band noise for precise attitude determination.