EDEN PRAIRIE, Minn.—June 30, 2016—NVE Corporation (Nasdaq: NVEC) today announced the introduction of the AAT009-10E Ultralow-Power Tunneling Magnetoresistance (TMR) Angle Sensor, a high-output magnetic sensor for angle measurements based on rotating magnetic fields.

AAT-Series Sensor output voltages are much larger than other sensor technologies. Typical applications include rotary encoders, and motor shaft position sensors, and Internet-of-Things end nodes.

The AAT009 has six megohm device resistance for ridiculously low power consumption, and can run years on a single button cell or on scant harvested power. Harvested power can be intermittent, and AAT-Series sensors detect and maintain absolute position information, and immediately power up in the correct position after power is restored.

Key AAT009 features include:

。Six megohm typical device resistance for ultralow power consumption
。 0.5 degrees maximum angular measurement error with fixed magnetic bias
。 200 mV/V peak-to-peak output signals
。Wide magnet airgap tolerance
。Sine and cosine outputs for direction detection
。 Ultraminiature 2.5 mm x 2.5 mm x 0.8 mm TDFN6

AAT-Series sensors use unique Tunneling Magnetoresistance (TMR) elements for large signals and low power consumption.Also known as Spin-Dependent Tunneling (SDT), Magnetic Tunnel Junction (MTJ), or Tunneling Magnetic Junction (TMJ), Tunneling Magnetoresistance is a spintronic quantum effect that produces a dramatic resistance change in a normally insulating layer, depending on the magnetic field and thus the predominant electron spin in a free layer.

The sensors provide sine and cosine signals defining the angle of rotation. Outputs are proportional to the supply voltage and peak-to-peak output voltages are much larger than conventional sensor technologies. Because they are resistive devices with no active components, AAT-Series sensors have no minimum voltage and can be powered from single cells.

The other two members of the AAT Angle Sensor family are the the AAT001 with a 1.25 megohm typical device resistance, and the AAT003 with a 40 kilohm device resistance, which is ideal for direct interface to microcontrollers.

Available now, AAT009-10E Angle Sensors are priced at $1.94 each in 1,000-piece quantities. Datasheets and more information are available at www.nve.com.

Source：http://www.nve.com