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NVE will be closed
May 31
for Memorial Day. |
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Nanopower
TMR Magnetic Switches |
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NVE's revolutionary family of Tunneling Magnetoresistance (TMR) magnetic switches
integrates TMR sensor elements with threshold comparitors for precise swtching
and ultralow power.
We recently expanded our product line with two high-sensitivity versions, the
ADT924-14E
and ADT925-14E.
Sensitive
The new versions provide magnetic operate points as low as 1.5 mT.
Ideal for Battery Operation
ADT-Series sensors operate from 2.4 to 4.2 volts, which is ideal for lithium
primary cells, lithium-ion rechargeable batteries, or 3.3-volt supplies.
Ultralow Power
TMR technology provides ultralow power. Typical quiescent supply current is just
0.6 microamps, even with no duty cycling. That’s less than the self-discharge
rate of lithium batteries, making the new sensors ideal for applications such
as utility meters or portable instruments.
Continuous Operation
Continuous operation allows fast switching (20 kilohertz) and avoids switching
artifact noise.
Configured as Switches
Outputs are configured as magnetic “switches,” turning on when a magnetic
field is applied and off when the field is removed. The field can be either polarity,
and the magnetic operate point is extremely stable over supply voltage and temperature.
Ultraminiature
ADT sensors are in a 1.1 by 1.1 by 0.35 millimeters (0.043 by
0.043 inch) ULLGA package.
In Stock
Four ADT-Series parts are now available:
Demonstration Board
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 sensor’s 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).
Download
the ADT Datasheet »
Download the
Demo Board Datasheet »
Here’s a demonstration of the remarkable sensitivity
of the new
ADT925-14E sensor:
And a demonstration of the ridiculously low power and the high speed of ADT-Series
parts:
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