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PRODUCT ANNOUNCEMENT |
NVE Introduces New TMR Angle Sensor
AAT001-10E Provides Full Quadrature and Large Signal Without Amplification
EDEN PRAIRIE, Minn.March 31, 2009NVE Corporation (Nasdaq: NVEC)
today announced the introduction of the AAT001-10E TMR Angle Sensor, NVEs
first commercial sensor to use Tunneling Magnetoresistance (TMR), which produces
an even more giant signal than Giant Magnetoresistance.
Also known as Spin-Dependent Tunneling (SDT), Magnetic Tunnel Junction (MTJ),
or Tunneling Magnetic Junction (TMJ), Tunneling Magnetoresistance is a spintronic
quantum effect that produces a dramatic resistance change in a normally insulating
layer, depending on the magnetic field and thus the predominant electron spin
in a free layer. The new device has four TMR elements configured as an angle sensor
with full quadrature sine and cosine outputs.
The parts come in an ultraminiature 2.5 millimeter by 2.5 millimeter six-pin TDFN
package. In typical operation, an external bar or split-pole magnet provides a
saturating magnetic field of 30 to 200 Oersteds in the plane of the sensor.
TMR produces a very large signal with no amplification for exceptional precision,
wide air-gap tolerance, and low power consumption due to high element resistance.
The AAT001-10E is ideal for applications such as rotary encoders, automotive rotary
sensors, motor shaft position sensors, and knob position sensors.
Datasheets and more information are available at www.GMRsensors.com or www.nve.com.
Available now, AAT001-10E angle sensors are priced at $1.94 each in 1,000-piece
quantities. Split-pole ferrite magnets for use with the sensors are available
and priced at $1.15 each in 1,000-piece quantities. Customers can also use their
own magnets.
NVE is a leader in the practical commercialization of spintronics, a nanotechnology
that relies on electron spin rather than electron charge to acquire, store and
transmit information. The company manufactures high-performance spintronic products
including sensors and couplers that are used to acquire and transmit data. NVE
has also licensed its spintronic magnetoresistive random access memory technology,
commonly known as MRAM.
Statements used in this announcement that relate to future plans, events, or performance
are forward-looking statements that are subject to certain risks and uncertainties
including, among others the risk factors listed from time to time in our filings
with the SEC, including our Annual Report on Form 10-K and other reports filed
with the SEC.
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