Analog Devices Inc (ADI) launched its new product, the ADXRS453 digital iMEMS gyroscope, a device crafted for angular rate sensing in rigorous or unrelenting environments, and includes a differential Quad Sensor that helps to be operable even under extreme shock and vibration situations.
It is a steady gyroscope with high sensitivity to linear acceleration (at 0.01 degree/sec/g), a noise-rate density specification of 0.023 degree/sec/square root Hz at +105 degree C, vibration rectification of only 0.0002 degree/sec/g2, power consumption of only 6 milliamps under typical conditions, and a null, offset stability of 16 degree/hr. It comes in a SMT-compatible vertical mount pack or in a cavity plastic SOIC-16, and can operate over voltages ranging from 3.3V to 5V, around a temperature range of -40 degree C to 125 degree C. This gyroscope is ideal for defense and industrial applications.
According to Kelly Atkinson, Analog Devices' marketing manager (defense electronics), its Quad sensor design discards the impact of linear acceleration due to intense shock (2000g) and vibration, and thus ultimately helps in functioning in harsh environments such as UAVs (unmanned aerial vehicles), avionic equipments and platform stabilization in land and sea based military vehicles to facilitate GPS supported dead-reckoning and complex navigation.
To check how reliable its electromechanical system is, a high frequency electrostatic force is employed on the sensing structure, which would give out a rate signal, which can be distinguished from the baseband rate information, and analyzed internally.
Wayne Meyer, Analog Devices manager, confirmed that this gyroscope was one of its kind and its robust operating skills in high temperatures make it a valuable addition. Sampling is available currently, with volume production being planned for December 2010.
Source: http://www.analog.com