Analog Devices, Inc. : Analog Devices Introduces Industry's Lowest Power MEMS Accelerometer
06/04/2012| 08:10am US/Eastern
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ADI's ADXL362 MEMS accelerometer enables wireless sensor networks,
wearable motion detectors and other portable systems to significantly
extend battery life.
Analog
Devices, Inc. (NASDAQ: ADI), a global leader in high-performance
semiconductors for signal processing applications, introduced today the
industry's lowest power MEMS accelerometer. The ADXL362, 3-axis, digital
MEMS accelerometer operates at 300 nA in motion sensing wake-up mode,
consuming 60 percent less current than the closest competing sensor in
the same mode. In full measurement mode, the ADXL362 uses 2 ?A at a 100
Hz data rate, using 80 percent less power than competing MEMS
accelerometers operating at the same frequency. This extremely low power
consumption allows the ADXL362 to be used in applications that require
battery life expectancy of months or years, and where battery
replacement can be impractical or dangerous to the equipment or operator.
ADXL362 MEMS Accelerometer Enables System-Level Power Savings
In addition to its native low-power operation, the ADXL362 MEMS
accelerometer has additional key features that enable system-level power
efficiency. The ADXL362 can be used as part of an intelligent,
continuously operational, motion-activated switch. Equipped with an
Awake Status output pin, the motion sensor can instantly trigger a
switch that turns on system functions, bypassing the processor, to
further reduce system power.
"Designing for low power requires more than low current draw at the
component level, it also means intelligently managing total system power
by turning system functions on and off at precisely the correct time,"
said Bill Murphy, product line director, MEMS/Sensors group, Analog
Devices. "The ADXL362 leads the industry in this respect, enabling
applications ranging from healthcare to infrastructure monitoring, where
battery life is absolutely critical."
The ADXL362 also integrates an enhanced, sample activity detection
function that accurately distinguishes between different kinds of
motion. This eliminates false positives and prevents the sensor from
turning the system on unnecessarily and costing additional battery life.
The ADXL362 MEMS accelerometer embeds a deep internal FIFO memory block
that allows system designers to record data and stream long data sets,
reducing processor load and saving additional system power.
DARPA Blast Gauge™ Impact Detection System Incorporates ADI MEMS
Technology
The ADXL362 is planned for implementation into the second generation of
DARPA's Blast Gauge™, which was developed at Rochester Institute of
Technology and commercialized by BlackBox Biometrics to protect U.S.
Armed Forces personnel. The Blast Gauge serves as both a screening tool
for medical personnel performing triage on individuals exposed to a
blast and provides detailed data for the research community unlocking
the causes of Traumatic Brain Injury (TBI.) The initial generation of
the blast gauge used ADI's ADXL345 sensor and has been deployed for a
year on thousands of U.S. soldiers in Afghanistan.
"Using ADI's high-performance MEMS sensors, the Blast Gauge has proven
to reliably detect concussive forces experienced by the men and women of
our Armed Forces. The ADXL362 will significantly extend battery life in
these sealed devices which utilize a non-rechargeable battery," said
David Borkholder, chief technology officer of BlackBox Biometrics.
More About the ADXL362 Digital MEMS Accelerometer
Additional features of the ADXL362 digital MEMS accelerometer include
two lower-noise modes that allow the user to roughly halve the noise at
the expense of a few microamps (?A); a built-in micro-power temperature
sensor; and the ability to synchronize the sampling time to an external
trigger. The ADXL362 natively provides acceleration data with 12-bit
resolution, as well as 8-bit formatted data for more efficient
single-byte transfers when a lower resolution is sufficient. The
accelerometer has measurement ranges of ±2 g, ±4 g, and ±8 g, with a
resolution of 1 mg/LSB on the ±2 g range.
ADXL362 Digital MEMS Accelerometer Key Features
-
Ultra low current in all operating modes
-
2 ?A at 100 Hz in full measurement mode
-
300 nA in wake-up mode
-
10 nA in standby
Availability and Pricing
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Product
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Sample
Availability
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Full
Production
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Price Each
Per 1,000
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Packaging
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ADXL362
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Now
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August 2012
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$3.97
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3 mm í- 3.25 mm í- 1.06 mm 16-lead LGA
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About Analog Devices
Innovation, performance, and excellence are the cultural pillars on
which Analog Devices has built one of the longest standing, highest
growth companies within the technology sector. Acknowledged
industry-wide as the world leader in data conversion and signal
conditioning technology, Analog Devices serves over 60,000 customers,
representing virtually all types of electronic equipment. Analog Devices
is headquartered in Norwood, Massachusetts, with design and
manufacturing facilities throughout the world. Analog Devices is
included in the S&P 500 Index.
Follow ADI on Twitter at http://www.twitter.com/ADI_News
To subscribe to Analog Dialogue, ADI's monthly technical journal,
visit: http://www.analog.com/library/analogDialogue/
Photos/Multimedia Gallery Available: http://www.businesswire.com/cgi-bin/mmg.cgi?eid=50297177&lang=en
Analog Devices, Inc.
Edie Lawlor Kramer, 781-937-1734
edie.kramer@analog.com
or
Porter
Novelli
Andrew MacLellan, 617-897-8270
andrew.maclellan@porternovelli.com
© Business Wire 2012
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