Analog Devices launches MEMS gyroscope for harsh environments
12 June 2010
Analog Devices, Inc (NYSE: ADI) has developed the
high-performance, low-power ADXRS450 iMEMS gyroscope with digital output
specifically for angular rate (rotational) sensing in harsh
environments.
This fourth-generation device features an advanced, differential
quad-sensor design that enables it to operate accurately under
intense shock and vibration conditions. The company claims no other
MEMS gyroscope is able to perform at this level under these
conditions. With robust performance and operating on low power of
only 6 mA, this MEMS gyroscope is effective for diverse
applications, such as robotics, industrial instrumentation,
avionics, and platform stabilization for high speed trains.
“Our customers rely on the Analog Devices iMEMS brand for the
high performance and reliability they receive from our motion
sensing products that combine innovative MEMS sensor design with
ADI’s leading analog signal conditioning circuitry for the optimum
sensing solution,” said Mark Martin, vice president, MEMS and
Sensors Technology Group, Analog Devices.
“The ADXRS450 iMEMS gyroscope is a complete angular rate
gyroscope in a single package and is the first device in a new class
of high performance MEMS gyros from ADI that feature an innovative
differential quad-sensor design.”
The new quad-sensor design rejects the influence of linear
acceleration, enabling the ADXRS450 to operate in exceedingly harsh
environments where shock and vibration are present and can cause
measurement errors in less capable gyros. It has sensitivity to
linear acceleration specified at only 0.03 °/sec/g, acceleration
rectification of only 0.003 °/sec/g2, a noise-rate density
specification of 0.020°/sec/√Hz, and power consumption of only 6
milliamps under typical conditions.
Other features include internal temperature compensation over an
extended industrial temperature range and an optional ceramic
vertical-mount package that uniquely enables three-axis sensing on a
single PCB without daughterboards.
Mr Martin added, “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.”