Analog Devices Announces iMEMS Gyroscope Providing High Performance Even Under Extreme Vibration

– Analog Devices' ADXRS64x digital iMEMS® gyroscope provides excellent vibration and shock resistance, bias stability, low noise, and a measurement range of up to ±50,000°/s.

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Analog Devices ( www.analog.com ), a global leader in high-performance semiconductors and a leader in the worldwide data converter market, today introduced three new high-performance, low-power iMEMS® gyroscopes (ADXRS642, ADXRS646, and ADXRS649) capable of detecting angular velocity in harsh environments. ADI’s new family of MEMS gyroscopes incorporates ADI’s advanced differential quad sensor technology, which eliminates the effects of linear acceleration and vibration, enabling accurate and stable velocity detection even under strong shocks and vibrations.

Wayne Meyer, Marketing and Application Manager for the MEMS/Sensor Technology Group at Analog Devices, stated, “ADI’s newly introduced MEMS gyroscope is characterized by significantly lowering the sensitivity to linear acceleration from 0.1°/sec/g, which was provided by existing products, to 0.015°/sec/g. In addition, the startup time is only 3 ms (millisecond), and power consumption is only 3.5 mA, which is more than 10 times lower than other MEMS gyroscopes that consume up to 60 mA.”

The ADXRS649 provides the industry's best angular velocity sensing speed of up to ±20,000°/sec and a fast startup time of 3 ms for high-speed power cycling, making it suitable for applications requiring a wide measurement range. By adding an external resistor, the sensing speed can be improved to ±50,000°/sec.

The ADXRS646 features an angular velocity measurement range of ±250°/s, a bandwidth of 1 kHz, and drift with low broadband noise of 8°/hr, making it suitable for high-performance orientation measurement and platform stabilization applications. Offering extremely low acceleration sensitivity of 0.015°/s/g and vibration compensation of 0.0001°/s/g², the ADXRS646 is an ideal product for high-performance orientation measurement and device stability control. The ADXRS642 also provides a measurement range of ±250°/s and offers enhanced vibration and shock resistance to existing ADI iMEMS gyroscope users through a convenient drop-in upgrade.

All of these new iMEMS gyroscope products utilize ADI's industry-leading iMEMS monolithic gyroscope technology and patented high-capacity BiMOS process technology, which has been proven for years of field stability. More detailed information about ADI's iMEMS gyroscopes is available on ADI's MEMS gyroscope website, and data sheets can be downloaded from the product pages.

"The newly introduced ADXRS45x incorporates ADI's innovative quad sensor technology along with the technology applied to the already widely used ADXRS62x iMEMS gyroscope series, as well as the same pinout and small BGA package," said Mark Martin, Vice President of Analog Devices' MEMS/Sensor Technology Group. "Development engineers can easily upgrade performance by easily replacing existing iMEMS in mass production, allowing them to fully take advantage of the available gyroscope performance."