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Ridiculously
Low Power Digital Sensors |
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A new manufacturing process
has allowed us to tighten the already ridiculously low power consumption specifications
of ADL-Series Nanopower Magnetic Switches.
Duty Cycled
Internally duty cycled versions (the ADL0xx and ADL1xx Series) will run nearly
forever on lithium button cells, making them ideal for battery applications such
as gas and water meters, or portable instruments.
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.
Integrated Latches
Integrated
latches ensure the outputs are continuously available. Two duty-cycle frequencies
are available, offering a tradeoff between update frequency and power consumption.
Continuously-operating versions (the ADL9xx Series) are also available.
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| ADL-Series Sensors fit |
| on the head of a pin. |
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ADL sensors are also NVE’s
smallest parts at just 1.1 mm x 1.1 mm x 0.35 mm.
Key Specifications
• 2.4 to 3.6 V supply voltage
• As low as 84 nW power consumption at 2.4 V
• 20 or 28 oersted operate points
• Open-drain output
• -40°C to +125°C temperature range
In Stock
Six part types are in stock for immediate delivery:
Part
Type
(click for
more info) |
Magnetic
Operate Point
(typ.) |
Update
Frequency
(typ.) |
Power
Consumption
(typ. at 2.4 V) |
| ADL021-14E |
20 Oe |
55 Hz |
120 nW |
| ADL024-14E |
28 Oe |
55 Hz |
120 nW |
| ADL121-14E |
20 Oe |
30 Hz |
84 nW |
| ADL124-14E |
28 Oe |
30 Hz |
84 nW |
| ADL921-14E |
20 Oe |
Continuous |
84 µW |
| ADL924-14E |
28 Oe |
Continuous |
84 µW |
Download
the updated ADL-Series Datasheet >
ADL
Evaluation Kits
2-Wire
Interfaces
With their new, even lower
quiescent current, ADL-Series sensors provide plenty of design margin for two-wire
interfaces.
Two-wire interfaces need to operate over a wide power supply range. With the sensor
off, the circuit must draw a minimal residual current, typically in the range
of 1.5 mA. With the sensor on, the circuit must provide enough current to
drive a significant load such as a motor or solenoid.
This reference
circuit uses an NVE DC001-10
regulator for wide operating latitude over the input voltage range:
Two-Wire Reference Circuit
The residual current is dominated by the regulator’s quiescent current, which
is less than 1 mA and relatively constant over input voltage. A Zener diode
can be used instead of a voltage regulator in many applications.
Here’s a live demonstration:
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Upcoming
Conferences and Exhibitions |
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Sensors Midwest
October 16 and 17
Rosemont, Illinois
Booth 201
Contact us
for a free exhibition pass!
NVE distributor HY-LINE will
be exhibiting at Wireless Congress:
Systems & Applications, November 15 and 16 in Munich, Germany. |
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