EDEN PRAIRIE, Minn.December 6, 2018NVE Corporation today announced
the new SM124-10E Smart Magnetometer. The new sensor combines a Giant Magnetoresistance
(GMR) sensor element with elegant digital signal processing. The versatile product
can be used for current or proximity measurements.
NVE Introduces Smart GMR Magnetometer
Versatile sensors are ideal for measuring current or proximity
Unlike awkward, old-fashioned Hall-effect sensors, GMR is sensitive in-plane
for optimal current sensing and easy mechanical interfaces.
A Slick, Elegant Data Structure
All data and parameters are input and output as single bytes (eight bits).
This provides better than 1% precision while eliminating the need to concatenate
upper and lower bytes.
No Communications Overhead
Data are always valid, so there is no need to wait for data during an I²C
read, and there are no set-up commands or error handling required. Sensitivity
and Offset Calibration
The sensor is factory calibrated for sensitivity, offset, linearity, and temperature
compensation. Users can also calibrate the output for a particular system.
Key SM124-10E features include:
Can detect magnets more than 50 mm away
I²C and digital threshold outputs
7-bit output resolution
In-plane sensitivitymore usable than Hall effect sensors
Programmable offset and gain compensation
Calibrated internal temperature sensor
Internal temperature compensation
Optional magnet temperature compensation
2.2 to 3.6V supply
Ultraminiature 2.5 x 2.5 x 0.8 mm TDFN package
The simple AG952-07 Evaluation Kit has everything needed to calibrate, test, and
evaluate SM124-10E Smart Magnetometers.
The kit includes:
A 1-inch by 1.625-inch (25 mm by 41 mm) USB-powered evaluation
- an SM124-10E GMR Smart Magnetometer
- a microcontroller connected
to the sensor via I²C
- a regulated 3.3 volt supply
to power the SM124-10E
- a current-carrying trace under
the sensor for evaluating as a current sensor
A small ceramic magnet for evaluating as a proximity sensor
USB cable to connect the Evaluation Board to a computer
Windows user interface software
A self-contained programming module with easy-to-use thumbwheel switches and
a socket will be available soon to program the sensors switching thresholds
without need of a computer or microcontroller.
Part of a Family
The SM124 is NVE's second Smart Magnetometer model. The SM324 tunneling magnetoresistance
(TMR) smart magnetometer was introduced in August. Billed as the world's first
TMR smart magnetometer, the SM324 boasts extremely high accuracy. The SM124 has
a simpler interface and is higher speed.
SM124-10E Smart Magnetometers are priced at $1.46 each in 1000-piece quantities.
AG952-07E Smart Magnetometer Evaluation Kits are priced at only $95.00 each. Sensors
and kits are in stock for immediate delivery.
Click here to download the SM124
datasheet, or visit www.nve.com for more
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.