ALT521-10E Rotational Sensors are Tunneling Magnetoresistance (TMR) Wheatstone
bridge sensors with large voltage signal, wide linear range, and ultraminiature
package size. The sensor has two half-bridge outputs for absolute angle detection
or both X- and Y-axis magnetic field detection. The outputs are bipolar, meaning
they are positive for a positive field and negative for a negative magnetic field
polarity. Key specifications are:
High sensitivity (140 mV/V/mT)
±0.5 mT linear range
Highly linear output (typ. 2% of full scale)
Low temperature coefficient of output (0.1%/°C)
100 kHz frequency bandwidth
2 megohm typ. device resistance for low power
Operation to near-zero supply voltage
Up to 125 °C operating temperature
2.5 x 2.5 mm DFN6 package
Arduino Shield02 demonstrates NVE ALT521 or AAT-, ADT- and ASR-Series angle/rotation sensors. The Shield connects via an edge connector to a sensor breakout board. Sixty LEDs indicate the angle, and colors indicate direction of rotation.
A diametrically-magnetized neodymium magnet is included, and a magnet fixture allows the magnet to be positioned on-axis or in one of three off-axis positions.
Arduino not included; breakout boards sold separately. The Shield is compatible with the following breakout boards:
ALT521-10E-EVB01:
Ultrahigh sensitivity analog angle sensor
AAT003-10E-EVB01:
Low output impedance analog angle sensor
AAT006-10E-EVB01:
High-sensitivity analog angle sensor
ADT002-10E-EVB01:
Digital output quadrature rotation sensor
ASR002-10E-EVB01:
SPI interface factory-calibrated angle sensor
ASR012-10E-EVB01:
I²C interface factory-calibrated angle sensor
ASR022-10E-EVB01:
ABZ Encoder Sensor
Arduino Software and detailed documentation can be downloaded from NVE's GitHub repository.
A 0.8 x 0.4 inch (21 x 10 mm) breakout board with the ALT024-10E high sensitivity Tunneling Magnetoresistance (TMR) analog bridge magnetometer.
The board has a pre-soldered sensor and footprints for a standard 0.1" (2.54 mm) header and a common, 1 mm pitch card-edge connector.
The board can be powered by a 0 to 10 V supply and provides a linear, differential output voltage.
The ALT024-10E is a Tunneling Magnetoresistance (TMR) analog bridge magnetic sensor
with high sensitivity and wide linear range. The differential bridge
output is bipolar, meaning it is positive for a positive field and negative for
an opposite field polarity.
Features:
±2 mT linear range
High sensitivity (120 mV/V/mT typical)
Wheatstone bridge magnetometer configuration
0 - 10 V power supply
20 kiloohm device resistance for low power
High linearity output (
A 0.8 x 0.4 inch (21 x 10 mm) breakout board with the ALT002-14E Tunneling Magnetoresistance (TMR) analog bridge magnetometer.
The board has a pre-soldered sensor and footprints for a standard 0.1" (2.54 mm) header and a common, 1 mm pitch card-edge connector.
The board can be powered by a 0 to 10 V supply and provides a linear, differential output voltage.
The ALT002-14E is an ultraminiature, ultrahigh sensitivity Tunneling Magnetoresistance (TMR) analog bridge magnetic sensor. The differential bridge
output is bipolar, meaning it is positive for a positive field and negative for
an opposite field polarity.
Features:
Tunneling Magnetoresistive Technology (TMR)
High sensitivity (200 mV/V/mT typical)
Wheatstone bridge magnetometer configuration
20 kiloohm device resistance for low power
±0.25 mT linear range
1.1 x 1.1 mm DFN4 package
–40 to 125°C
Applications:
Wearables
Proximity detection
Motion, speed, and position control
Non-contact current sensing
Mechatronics and robotics
This evaluation board measures zero to seven amps with just four connections--two for the power supply and two for a differential output. The board is based on the revolutionary ALT023-10E TMR magnetometer, which is ideal for noncontact current sensing. The current-over-trace configuration provides inherent isolation and is more efficient than a shunt.
The board has a sensor plus 1/4" screw terminals for current connections, a standard 0.1-inch header for sensor connections, and a 1 mm pitch card-edge connector.
The board comes with a business-card size guide with pinouts and specifications. A QR code provides a link to the sensor datasheet.
The board measures 2.0" x 1.9" x 0.63" (52 x 48 x 1.6 mm)
This evaluation board measures zero to seven amps with just four connections--two for the power supply and two for a differential output. The board is based on the revolutionary ALT023-10E TMR magnetometer, which is ideal for noncontact current sensing. The current-over-trace configuration provides inherent isolation and is more efficient than a shunt.
The board has a sensor plus screw terminals for current connections, a standard 0.1-inch header for sensor connections, and a 1 mm pitch card-edge connector.
The board comes with a business-card size guide with pinouts and specifications. A QR code provides a link to the sensor datasheet.
The board measures 0.9" x 0.5" x 0.063" (22 x 12 x 1.6 mm)
This evaluation board measures zero to one amp with just four connections--two for the power supply and two for a differential output. The board is based on the revolutionary ALT023-10E TMR magnetometer, which is ideal for noncontact current sensing. The current-over-trace configuration provides inherent isolation and is more efficient than a shunt.
The board has a sensor plus screw terminals for current connections, a standard 0.1-inch header for sensor connections, and a 1 mm pitch card-edge connector.
The board comes with a business-card size guide with pinouts and specifications. A QR code provides a link to the sensor datasheet.
The board measures 0.9" x 0.5" x 0.063" (22 x 12 x 1.6 mm)
Knit pom pom beanie hat, blue with white NVE logo. 12 inches long with a 3 inch cuff, 100% acrylic. We know spintronics and how to keep warm in the winter.
A 0.8 x 0.4 inch (21 x 10 mm) breakout board with the AAL004-10E 1.5 mT saturation GMR analog bridge magnetometer.
The board has a pre-soldered sensor and footprints for a standard 0.1" (2.54 mm) header and a common, 1 mm pitch card-edge connector.
The board can be powered by a 0 to 12 V supply and provides a differential output voltage proportional to the applied magnetic field.
A smart business card that demonstrates the ADT925-14E 1.1 x 1.1 mm DFN4 TMR Switch sensor.
The board can be plugged into a USB TYPE-A connector, such as those on a computer, for power. An LED on the card shows when the sensor is activated. A small neodymium magnet is included to activate the sensor.
You can carry it with you so you're always prepared to demonstrate the high sensitivity, low power, and small size of TMR sensors.
A 0.8 x 0.4 inch (21 x 10 mm) breakout board with the ACT001-10E TMR analog bridge current sensor. The sensor
has an on-chip current strap for precise operation.
The board has a pre-soldered sensor and footprints for a standard 0.1" (2.54 mm) header and a common, 1 mm pitch card-edge connector.
The board can be powered by a 0 to 14 V supply and provides a differential output voltage proportional current.
A 0.8 x 0.4 inch (21 x 10 mm) breakout board with the AAL024-10E 1.5 mT saturation, low hysteresis GMR analog bridge magnetometer. Its cross-axis sensitivity makes it ideal for noncontact current sensing, which can be evaluated using this board (up to 7 A for this board).
The board has a pre-soldered sensor, screw terminals for the current trace, a standard 0.1" (2.54 mm) header, and a 1 mm pitch card-edge connector.
The board can be powered by a 0 to 24 V supply and provides a differential output voltage proportional to the applied magnetic field or current.
A 0.8 x 0.4 inch (21 x 10 mm) breakout board with the AKT001-14E high-field (1.5 T), low power TMR analog bridge magnetometer. The sensor is an ultraminiature 1.1 x 1.1 mm package.
The board has a pre-soldered sensor and footprints for a standard 0.1" (2.54 mm) header and a common, 1 mm pitch card-edge connector.
The board can be powered by a 0 to 5.5 V supply and provides a differential output voltage proportional to the applied magnetic field.
A 0.8 x 0.4 inch (21 x 10 mm) breakout board with the AAL002-02E 1.5 mT saturation GMR analog bridge magnetometer.
The board has a pre-soldered sensor and footprints for a standard 0.1" (2.54 mm) header and a common, 1 mm pitch card-edge connector.
The board can be powered by a 0 to 12 V supply and provides a differential output voltage proportional to the applied magnetic field.