MEMS gyro, industry's 'most stable' says ADI

1 min read

Analog Devices has announced a low power ADXRS450 iMEMS gyroscope with digital output specifically for angular rate (rotational) sensing in harsh environments.

The device features a quad-sensor design that enables it to operate accurately under intense shock and vibration conditions. According to ADI, no other MEMS gyroscope is able to perform at this level under these conditions. It operates on low power of 6 mA and has been designed for applications such as robotics, industrial instrumentation, avionics, and platform stabilisation for high speed trains. ADI says that the new quad-sensor design rejects the influence of linear acceleration, enabling it to operate in harsh environments where shock and vibration are present and can potentially cause measurement errors. Described as the 'most stable, vibration-immune MEMS gyro available', the device has sensitivity to linear acceleration specified at 0.03°/sec/g, acceleration rectification of 0.003°/sec/g2, a noise-rate density specification of 0.020°/sec/vHz, and power consumption of 6milliamps under typical conditions. Mark Martin, vice president, MEMS and Sensors Technology Group, Analog Devices, said: "MEMS gyroscopes have long been the most difficult MEMS device to design and manufacture, particularly at the high performance and low power consumption levels required in many emerging industrial automation and instrument applications. When compared to other high performance MEMS gyros available, our new iMEMS gyros consume only one tenth the power of competing products and provide greater stability and vibration immunity."