A 0.8 x 0.4 inch (21 x 10 mm) breakout board with the AA007-00E 50 mT saturation, low-power 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 24 V supply and provides a differential output voltage proportional to the applied magnetic field.
NVE's ABL015-10E GMR sensor is an analog output sensor for gear tooth sensing or magnetic encoders. The differential sensor elements are spaced 0.5 mm apart on the sensor IC, and the two sensors are phase shifted by 0.25 mm.
Bridge Resistance for Each Bridge (Ohms)
Linear Range (Oersteds)
Output
Comments
Package
Dual Differential Sensor (Gradiometer); senses the magnetic field gradient across the sensor IC. Center-to-center distance between sensor elements is 0.500 mm, and phase shift from sensor to sensor is 0.250 mm.
4K - 7K
+/-5 to +/-100
Dual Analog Bridge
Gear Tooth or Encoder
TDFN6
Note: Parts must be purchased in multiples of 100 for quantities of 100 or more. Larger quantities are subject to NVE's standard lead times.
AD924-00 Sensors are for use with external high-current output transistors in
industrial control environments. The parts provide the same precise magnetic performance
as NVE's GMR Digital Switches with the addition of output stage short circuit
protection (SCP). The protection circuit shuts off the output stage if there is
a short circuit, then turns it back on after a specified interval. The sensor,
combined with external reverse battery and overvoltage protection, results in
a "bulletproof" assembly.
Features:
Precision Magnetic Operate Point -- 28 Gauss
Excellent Temperature and Voltage Performance
Digital Outputs
Frequency Response 0 to 250 KHz
Small, Low Profile Surface Mount Packages
Applications:
General Digital Field Sensing
Pneumatic Cylinder Position Sensing
Speed Sensing
Supply
Voltage
min.-max.
Supply
Current
(mA)
min.-max.
Op. Point
(Oe)
min.-max.
Differ-
ential
(Oe)
min.
Output
Sat.
Voltage
max.
Output
Pkg. Mark
Orien-
tation
Pkg.
4.5-30.0
2.5-4.5
21-34
5
0.4
Sink/
Source/
Vreg/
SCP
NBF
Cross axis
MSOP8 (Pb)
Note: Parts must be purchased in tube quantities (multiples of 100) for quantities of 100 or more. Larger quantities are subject to NVE's standard lead times.
The ADK991-14E Nanopower Switch integrates TMR sensor elements with digital signal processing. Continuous operation allows high frequency switching. The part is packaged in an ultraminiature ULLGA.
Features:
350 mT Digital Switch
Ultraminiature 1.1 mm x 1.1 mm x 0.35 mm ULLGA package
2.4 to 4.2 V
1 microamp quiescent current at 3 V without duty-cycling
Ultraminiature 1.1 mm x 1.1 mm x 0.35 mm ULLGA package
Applications:
MRI Detection
Battery-Powered Devices
Portable Instruments
Wearables
NVE's ADT924-14E Nanopower Switch integrates TMR sensor elements with digital signal processing. Continuous operation allows high frequency switching. The part is packaged in an ultraminiature ULLGA.
Features:
2.2 mT (22 Oe) Digital Switch
Ultraminiature 1.1 mm x 1.1 mm x 0.35 mm ULLGA package
2.4 to 4.2 V
1 microamp quiescent current at 3 V without duty-cycling
Up to 20 kHz switching frequency
Ultraminiature 1.1 mm x 1.1 mm x 0.35 mm ULLGA package
Applications:
Battery-Powered Devices
Portable Instruments
Wearables
AET050F-00E sensors can be used with multipole ring magnets as rotary encoders or with magnetic scale tapes as linear motion sensors. High sensitivity allows for wide airgaps and accommodates mechanical tolerances.
The full-bridge configuration maximizes noise immunity and provides large 600 mVpp/V output signals. Sine and cosine outputs provide direction information.
Evaluation and Demonstration
Kits are also available.
AET075F-00E sensors can be used with multipole ring magnets as rotary encoders or with magnetic scale tapes as linear motion sensors. High sensitivity allows for wide airgaps and accommodates mechanical tolerances.
The full-bridge configuration maximizes noise immunity and provides large 600 mVpp/V output signals. Sine and cosine outputs provide direction information.
Evaluation and Demonstration
Kits are also available.
AET120F-00E sensors can be used with multipole ring magnets as rotary encoders or with magnetic scale tapes as linear motion sensors. High sensitivity allows for wide airgaps and accommodates mechanical tolerances.
The full-bridge configuration maximizes noise immunity and provides large 600 mVpp/V output signals. Sine and cosine outputs provide direction information.
Evaluation and Demonstration
Kits are also available.
This demonstration features the ALT025 low hysteresis, high-speed TMR magnetometer and a high current PCB layout, optimized for the detection of +/- 200 amps. The board has sturdy screw terminal connections for current input, and it has header pins for sensor power and output.
A self-contained demonstrator for NVE’s unique AKL digital gear tooth sensor.The battery-powered demonstrator (battery included) is based on an AKL001 sensor. The demonstrator also includes a circuit board with an LED and driver, a biasing magnet, and a gear that can be turned by hand. No assembly required. Dimensions 3" x 3" x 1.5".
The kit includes a circuit board with an AAT009-10E 6 megohm Angle Sensor and a unity-gain buffer amplifier. The circuit board can be powered with a 1.7 V to 5.5 V power supply. An angular reticle on the circuit board aids in characterizing output versus angle.
The kit also includes a split-pole magnet and a plastic magnet locating fixture.
The AAT009-10E Angle Sensor has ultra-ultra low power consumption and is ideal for long-term battery-powered operation or operation from harvested power.
The AG954-07E provides a socket for easy programming and prototyping of TDFN6 devices without soldering and unsoldering.
The custom socket is compatible with NVE's 2.5 mm x 2.5 mm TDFN6 package parts (-10E suffixes).
The board is 1.5" x 2" (38 mm x 50 mm), and uses brass hardware to minimize magnetic interference with the socketed sensor.
A 0.1"-spaced header provides for connections to the sensors, and a row of 0.1"-spaced through-holes allows for auxiliary parts such as a decoupling capacitor or an LED.
This self-contained module allows zeroing and programming the digital output threshold and hysteresis or SM124-10E or SM125-10E Smart Magnetometer without need of a computer or a customer microcontroller.
The 2.5" x 2.5" (64 mm x 64 mm) board has an I²C master microcontroller connected to the SM124.
A pushbutton for zeros the sensor, and miniature rotary thumbwheel switches provide three digits of resolution for the threshold and two for hysteresis. A custom TDFN-6 socket accommodates the 2.5 mm x 2.5 mm SM12x-10E. The module is powered by a small wall-mounted power supply (included).
Jumpers allow the sensor to be disconnected from the rest of the board so the board can be used as an interface to the customer’s electronics.
This module includes:
A 2.5 x 2.5 mm TDFN6 socket for a SM12x-10E Smart Magnetometer
A preprogrammed, onboard microcontroller
Two sets of thumbwheel switches for digital threshold and hysteresis
Two LEDs indicating the sensor’s output and successful programming