Analog Devices develops ADXRS450 i MEMS gyroscope

SEOUL: Analog Devices Inc has developed a high-performance, low-power ADXRS450 i MEMS gyroscope with digital output exclusively for angular rate (rotational) sensing in harsh surroundings.

The fourth-generation device features a superior, differential quad-sensor design enabling it to function correctly under intense shock and vibration circumstances. With tough performance and operating on low power of just 6mA, this MEMS gyroscope is efficient for assorted applications, for example robotics, industrial instrumentation, avionics and platform stabilization for high-speed trains.

"Our customers depend on the Analog Devices iMEMS brand for the superior performance and dependability they obtain from our motion sensing products that unite pioneering MEMS sensor design with ADI's foremost analog signal conditioning circuitry for the best sensing solution," said Mark Martin, VP, MEMS and sensors technology group, ADI.

The latest quad-sensor design rejects the pressure of linear acceleration, enabling the ADXRS450 to function in very harsh environments where shock and vibration are there and can cause measurement errors in less competent gyros. The ADXRS450 is the most steady, vibration-immune MEMS gyro available, with sensitivity to linear acceleration specified at just 0.03°/sec/g, acceleration rectification of only 0.003°/sec/g2, a noise-rate density specification of 0.020°/sec/vHz, and power consumption of only 6mA under characteristic conditions.

The ADXRS450 high-performance angular rate gyroscope is able to sense angular rates up to ±300°/sec. Angular rate data is offered as a 16bit word, as part of a 32bit SPI message. The ADXRS450 is available in a cavity plastic SOIC-16 and an SMT-compatible vertical mount package and is capable of operating across both a broad voltage range (3.3V to 5V) and temperature range (-40°C to 105°C).

The gyroscope also features high vibration rejection over an extensive frequency range that allows for constant readings in harsh environments. Internal temperature compensation enables greater steadiness over extensive industrial temp range, while the 2,000-g powered shock survivability delivers greater consistency.

The high-performance ADXRS450 iMEMS gyroscope is sampling today with volume production planned for the month of December. The ADXRS450 comes in a small 16-lead plastic SOIC package and an SMT-compatible ceramic vertical- mount package; each costing $43.16 per unit and $57.07 per unit, respectively, in 1,000-unit quantities