the disruptive semiconductor technologies magazine - I-Micronews

OCTOBER 2010 issue n°100
THE DISRUPTIVE SEMICONDUCTOR TECHNOLOGIES MAGAZINE
MEMS
Analog Devices’ MEMS digital gyroscope offers higher rate sensing accuracy
where extreme shock and vibration are present
ADI’s ADXRS453 digital iMEMS ® gyroscope achieves 0.01°/sec/g sensitivity during linear acceleration,16°/hr null offset
stability, and is the industry’s most stable, vibration-immune MEMS gyro.
Analog Devices, Inc. (ADI) introduced the
ADXRS453 iMEMS® gyroscope, the latest
addition to ADI’s portfolio of fourth-generation
high-performance, low-power gyroscopes with digital
output. Specifically designed for angular rate
(rotational) sensing in harsh environments, the new
gyro features an advanced, differential Quad-
Sensor design that enables it to operate accurately
under intense shock and vibration conditions.
The ADXRS453 is the most stable, vibration-immune
MEMS gyro available, with sensitivity to linear
acceleration specifi ed at only 0.01 °/sec/g, vibration
rectifi cation of only 0.0002 °/sec/g2, a noise-rate
density specifi cation of 0.023°/sec/√Hz at +105°C,
null offset stability of 16°/hr and power consumption
of only 6 milliamps under typical conditions. The new
gyro is available in a cavity plastic SOIC-16 and an
SMT-compatible vertical mount package and is
capable of operating across a wide voltage range of
3.3 V to 5 V and an extended temperature range of
-40°C to 125°C. The ADXRS453 is well suited for
industrial and defense applications.
“The ADXRS453 features an innovative Quad-
Sensor design that rejects the infl uence of linear
acceleration caused by intense shock and vibration,”
said Kelly Atkinson, defense electronics marketing
manager, Analog Devices. “This enables the
ADXRS453 to enable complex navigation and GPSaided
dead-reckoning in exceedingly harsh
environments like unmanned aerial vehicles (UAVs),
platform stabilization in land- and sea-based military
vehicles, and avionics equipment where shock and
vibration are present and can cause measurement
errors in less capable gyros.”
The digital output ADXRS453 is capable of sensing
angular rates up to ±300°/sec and its angular rate data
is presented as a 16-bit word within a 32-bit serial
peripheral interface (SPI) message. The ADXRS453
utilizes an internal, continuous self-test architecture.
The integrity of the electromechanical system is
checked by applying a high frequency electrostatic
force to the sense structure to generate a rate signal
that can be differentiated from the baseband rate data
and internally analyzed.
The high-performance ADXRS453 and ADXRS450
iMEMS gyroscopes are available today in sample
quantities with production release scheduled for
December 2010. The ADXRS453 comes in a small
16-lead plastic SOIC package and an SMT-compatible
ceramic vertical-mount package.
www.analog.com
MARKET FOCUS
IMU & High Performance Inertial MEMS 2010 Report
Complete review of the 2009-2015 IMU & high performance MEMS market
Yole Développement updated its market & technologies dedicated to inertial measurement unit (IMU) and high
performance inertial MEMS devices. The report IMU & High Performance Inertial MEMS 2010 provides worldwide market
metrics from 2009 to 2015, market shares and key IMU applications. It also gives a deep description of gyroscopes and
accelerometers technologies and analyzes the level of performance for each application.
Copyrights © Yole Développement SA. All rights reserved - Recycled paper
High performance motion sensing is
gaining interest in many industries
In the military & aerospace areas, the use of Inertial
Measurement Units (IMUs) and other systems based
on high-performance gyroscopes has been
widespread for navigation, flight control or stabilization
functions for decades. Today Yole Développement
now sees many industrial and healthcare applications
emerging, driven by the possibility to integrate new
functionality at low cost, mostly thanks to the recent
developments in MEMS accelerometer and gyroscope
technology.
The market for IMUs is estimated to be $1.55B in
2009, dominated by defense and aerospace
applications. Yole Développement sees this market
growing at a 9% annual growth rate, to reach $2.60B
in 2015. Industrial, commercial naval and offshore
applications will be the most dynamic with 16.5%
yearly growth, when the aerospace and defense
markets will be limited to a 5.5% and 6.8% annual
growth.
Several technologies are currently on the market,
RLG and FOG-based systems being the most
widespread and still benefi ting from progresses in
photonics. However the recent and rapid development
of tactical-grade MEMS gyroscope technologies has
the largest impact on the market landscape and on
the competition. It is crucial for the companies
involved in those markets to invest in the right
technologies and partners, depending on the endmarkets
which are targeted. Different strategies are
observed: some companies carefully invest in
selected technologies like the market leader
Honeywell, while others love all inertial technologies,
like Northrop Grumman.
MEMS industrial and tactical-grade type
of sensors, the most dynamic technology
Yole Développement sees the market growing from
$361.8M in 2009 to $604.6M in 2015 for single MEMS
accelerometers and gyroscopes or assembly of
MEMS accelerometers / gyroscopes. However many
technical and commercial challenges are predicted
for the players involved in MEMS: how to guarantee
a high level of vacuum for keeping high performance
over the years, how to bring down the costs when
most of the applications are in the 100 or 1000 unit
range per year, why is it so important to avoid export
restrictions like ITAR, what are the best business
partners to enter new markets which are sometimes
captive…
The recent availability of tactical-grade MEMS IMUs
is clearly attractive for a wide range of applications.
Indeed many applications will fi nd interest in low-cost
devices while it also opens new market opportunities
such as precision guided munitions or small size
UAVs. This explains why nearly each major IMU
manufacturer has a MEMS technology today,
although the status of developments is not the same
for all players.
This report is more than a simple update of the “IMU
market 2007-2012” report. The involvement of Yole
Developpement on the high-end inertial market has
continued to grow in the last couple of years, with
discussions with key companies involved in the fi eld
all over the world and participation in many
conferences.
For more information about this report, please contact
David Jourdan (jourdan@yole.fr)
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