High-Sensitivity Nanopower TMR Magnetic Switches
EDEN PRAIRIE, Minn.February 15, 2021NVE Corporation has added two
high-sensitivity models to its revolutionary ADT9xx-Series of Tunneling Magnetoresistance
(TMR) magnetic switches.
The new models provide magnetic operate points as low as 1.5 millitesla.
The field can be either polarity, and the magnetic operate point is extremely
stable over supply voltage and temperature.
ADT9xx-Series sensors operate from 2.4 to 4.2 volts, which is ideal for lithium
or lithium-ion batteries and 3.3-volt supplies.
TMR technology provides ultralow power. Typical quiescent supply current is just
one microamp with no duty cycling. Thats less than the self-discharge
rate of typical lithium-ion batteries, making the new sensors ideal for battery
applications such as utility meters or portable instruments.
Continuous operation without duty cycling means the sensors are fast, and can
switch at more than 20 kilohertz.
Configured as Switches
Outputs are configured as magnetic switches, turning on when a magnetic
field is applied and off when the field is removed.
ADT9xx-Series sensors are in a 1.1 millimeter by 1.1 millimeter by 0.35 millimeter
Four ADT9xx-Series parts are now available:
| ADT925-14E (new)
| ADT924-14E (new)
The AG040T Demonstration Board has an ADT923-14E sensor and an LED to show the
sensor output. It is is powered by a three-volt lithium coin cell (included).
The sensors low quiescent power allows the battery to last at least several
years with occasional LED use. A miniature bar magnet is included to activate
the sensor. The board is just 1.57 by 0.25 inches (40 by 6 millimeters).
All four ADT9xx-Series TMR magnetic switches are in stock for immediate delivery,
priced at $1.74 each in 1000-piece quantities.
Click here to download the ADT9xx-Series
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.
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.