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NVE is highlighted in a
recent article in Elektronik International titled, “Bye-Bye
Optocoupler.”
German
English
An excerpt: “Optocouplers are no longer fast enough for today’s data
technology. So what are the alternatives?” (spoiler alert: they’re made
by NVE).
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Year
in Review |
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new product highlights included:
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Smart
GMR Magnetometers
SM12x magnetometers are versatile sensors with omnipolar GMR sensor elements,
sophisticated digital signal processing, an I2C interface, and a programmable
threshold output.
The SM124 has a 1 mT linear range and the SM125 has a 4 mT linear range.
Like all of our smart sensors, it is factory
calibrated and comes in an ultraminiature 2.5 x 2.5 mm DFN.
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Smart TMR Magnetometer
The SM225-10E Smart Magnetometer has a TMR sensor element to provide a wide -15 to 15 mT
linear range and a fast 15 kSps update rate via an SPI interface. It is ideal
for noncontact current sensing.
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Smart
Angle Sensor
The ASR002-10E is the world’s first Smart TMR Angle Sensor, providing a extraordinary
combination of speed and precision. |
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Nanopower
TMR Magnetic Switches
The 1.5-volt
AHT-Series, 3-volt
ADT-Series, and high-field
AHT991 magnetic switches are nanopower, high speed, and ultraminiature.
They are ideal for battery-powered applications, and their continuous operation
without duty cycling means a virtually instantaneous response. |
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CAN
FD Isolated Transceivers
NVE’s popular line of isolated CAN transceivers was expanded to include CAN
FD, which has up to five times the data rate of standard CAN.
Like all of our isolated transceivers, the new CAN FD transceivers are available
in NVE’s unique QSOP16 package, which is the world’s smallest isolated
transceiver, as well as narrow and wide SOIC16s.
Our unique polymer/ceramic composite barrier provides best-in-class barrier resistance
and virtually unlimited barrier life.
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Isolated
Transceiver for 3V RS-485
We expanded our popular line of isolated transceivers with the IL3685P, designed
to work with next-generation RS-485 buses.
The new IL3685P is compatible with 3.3V buses, has 1/5 Unit Loading to support
up to 160 nodes, and 16.5 kV bus ESD protection. It’s perfect for industrial
control networks and DC-DC convertor-powered buses.
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TMR Bipolar Analog Magnetic Sensor
Ideal for current or proximity sensing, the new ALT005 and ALT025 are TMR analog
bridge magnetometers with high 20 mV/V/mT sensitivity, 20 kiloohm device resistance
for low power, and a full -40 to 125 °C temperature range. The output
is bipolar, meaning it is positive for a positive field and negative for an opposite
field polarity.
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High-Field TMR Magnetic Switches |
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The unique AHK991-14E
is a high-field, low voltage, low power, Tunneling Magnetoresistance (TMR) magnetic
switch.
High Fields
The new sensors have a 350 mT (3500 Oe) typical operate point, which is high enough
to detect close-proximity rare-earth magnets. The sensors can withstand unlimited
fields without being damaged or turning off.
Omni-directional
The digital output turns on and off as field intensity varies. Unlike Hall effect
or other sensors, the switch is sensitive to magnetic fields in any direction,
so multiple sensors are not needed for orthogonal or unknown directions of applied
fields.
Low Voltage
AHK991 sensors operate as low as 0.9 volts, so they can be powered by single-cell
alkaline batteries.
Low Power
TMR technology provides ultralow power. Typical AHK991 quiescent supply current
is just 2 microamps, even with no duty cycling. That’s less than the
self-discharge rate of some button cells, making the new sensors ideal for battery
applications such as utility 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 magnetic operate point
is extremely stable over supply voltage and temperature.
Speed
Continuous operation without duty cycling means the sensors can switch at 3000 Hz.
Ultraminiature
AHK991 sensors come in ultraminiature 1.1 x 1.1 x 0.35 mm ULLGA-4 packages.
Key Specifications
• 350 mT operate point
• 0.9 to 1.8 V
• 2 µA typical supply current
• 3000 Hz switching speed
• -40 to 85°C
Here’s a demonstration:
Download
the AHK Datasheet »
Available Now
Parts are in stock for immediate delivery:
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4 mT GMR Smart Magnetometer |
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NVE expanded its industry-leading line of GMR Smart Sensors with the SM125-10E,
a higher-field (4 mT) version of the popular SM124-10E 1 mT GMR Smart Magnetometer.
The SM124-10E and SM125-10E feature programmable threshold outputs and I²C interfaces,
and have better than 1% precision.
Demo
Boards are also available.
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