WEBVTT

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♪ Tiny things ♪

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We just launched AHT92x-Series
TMR ultraminiature magnetic switch sensors.

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They're the smallest, lowest power
continuous-duty sensors in the industry.

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In this video, we'll show how they're

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smaller, lower power, and higher speed
than the lowest-power Hall effect sensors.

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First the NVE sensor.

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The 0.65 mm square
Wafer-Level Chip Scale package

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provides unmatched miniaturization
and spatial sensitivity.

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The meter on the left
shows the supply current;

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The meter on the right
shows the open-drain output resistance.

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The supply specification is
0.35 microamps at 1.5 volts.

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We're measuring less than 0.3 microamps...
less than 450 nanowatts.

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The unique TMR sensor element
is inherently low power,

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eliminating the need for duty cycling.

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So they're high speed--

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up to 3 kilohertz,
or 180,000 RPM.

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As shown on the meter on the right,

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we can get up to about
60 Hz with this drill.

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This is a so-called "ultralow power"
Hall effect sensor.

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Its minimum supply is 1.65 volts,
so it can't run on a 1.5 volt battery.

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Even with the required external capacitor,
the supply current isn't very stable.

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The power spec is 900 nanowatts,
which is 70% more than the NVE sensor.

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And it's slow.

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Since it only samples
a few times per second,

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it can't measure anything faster than a few Hertz.

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TI claims "industry-leading power consumption,"

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but they're going to have to
change their datasheet.

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Our new part draws 70% less power;

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is a thousand times faster.

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and just one-fourth the size.

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The new parts have three
operate point versions,

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and two package options.

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The Wafer-Level Chip Scale version
is just 0.65 mm square.

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The other package option is a 1.1 mm DFN4.

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We've been introducing Wafer-Level Chip Scale   
switches for the past year,

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with more coming.

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In addition to the parts
we just launched,

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we have continuous and duty-cycled
GMR versions.

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Coming soon are duty-cycled
TMR version for ridiculously low power.

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We also have evaluation boards, 
so you don't have to solder them by hand.

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Contact NVE or visit nve.com
for more information.