NVE Introduces Low Voltage Nanopower
Magnetic Sensors for Medical Devices
1.1 Millimeter Square Packaged Part Draws Less than 30 Nanowatts at 0.9 Volts
EDEN PRAIRIE, Minn.June 23, 2010NVE Corporation (Nasdaq: NVEC)
today announced the introduction of the BDx27 family of low-voltage nanopower
magnetic sensors designed for implantable medical devices.
The integrated circuits consist of GMR sensor elements, signal processing circuitry
to convert the analog sensor element output to a digital output, and optional
oscillator and timing circuitry for power management duty cycling.
Configured as a magnetic switch, the sensor output turns on when a magnetic field
is applied and turns off when the field is removed. The standard magnetic operate
point is 15 oersteds (1.5 millitesla), and custom operate points are available.
The operate point is extremely stable over supply voltage and temperature.
Supply voltage operating range is 0.9 to 2.4 volts, ideal for single battery-powered
implantable medical devices. The BD027 version is internally duty cycled to conserve
power, and typical power consumption is a remarkable 29 nanowatts at 0.9 volts.
An integrated latch ensures the output is available continuously. There is also
a continuous-duty version, the BD927.
Packaged in ultraminiature, four-pin, 1.1 millimeter by 1.1 millimeter by 0.4
millimeter Ultra Leadframe Land Grid Array (ULLGA) leadless packages, BDx27 sensors
are NVEs smallest packaged parts. For wire bonding assembly, 0.625 mm x
0.625 mm bare die are also available.
BDx27 sensors are lower-voltage, lower-power versions of NVEs award-winning
BD020 magnetic sensors for medical devices, which have a minimum supply voltage
of 2.4 volts.
Compared to reed switches, BDx27 and BD020 sensors feature smaller size, more
magnetic sensitivity, more precise operate points, and inherent solid state reliability.
Ideal applications include battery-powered implantable devices such as pacemakers,
ICDs, neurostimulators, and drug pumps.
Datasheets and more information on NVEs magnetic sensors for medical devices
are available at www.nve.com/medical.
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.