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Schanzenfeldstr. 2
35578 Wetzlar
AMR Sensorchips
Sensoren basierend auf dem AnisotropenMagnetoResistiven Effekt
Sensitec GmbH
Schanzenfeldstr. 2
35578 Wetzlar
Sensoren basierend auf dem AnisotropenMagnetoResistiven Effekt
Our sensors based on Anisotropic MagnetoResistive (AMR) technology are characterized by a simple and robust design of the sensor layer. Years of experience with many different designs have resulted in a broad portfolio of AMR sensors for industrial, automotive and consumer applications.
Special design features increase the signal quality and make the sensors extremely valuable for many applications. Particularly in terms of robustness vs. signal quality, an AMR technology-based sensor is still a good choice for high-performance products.
Extended degree of freedom for sensor orientation.
Compact SMD package for horizontal and vertical placement.
Below you will find a further selection of different AMR sensors.
Sensors of the AA700 family are FreePitch sensors based on the Anisotropic MagnetoResistive (AMR) effect.
The sensors consist of two Wheatstone measuring bridges rotated by 45° to each other. A rotating useful magnetic field (e.g. of a dipole magnet) in the sensor plane provides two signals (sine and cosine) that are 90° out of phase with each other at twice the frequency of the magnetic field.
All sensors in the AA700 family feature PerfectWave technology and deliver extremely low harmonic output signals.
The sensors are available in different processing variants. As a bare die, the sensors can be assembled directly using chip-on-board technology. The SO8 housing is well suited for applications at the shaft end and can be easily assembled on a PCB. The special SIL6 or LGA6 package enables SMD assembly, but can be assembled on a PCB edge – this allows small distances between the sensor and the measuring scale to be realized in the application. Some of the bare sensors are automotive certified according to IATF.
Optimized for off-axis arrangements
-Automotive certified-
Technical documents
• Data sheet Type A
• Data sheet Type C
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Optimized for large working distances and low field strengths
Technical documents
• Data sheet Type A
• Data sheet Type C
Optimized for shaft end measurements with separate bridges for both measuring bridges
-Automotive certified-
Technical documents
• Data sheet
Digikey-Online Shop
Advantages
Applications
Product details
Sensors of the AL700 family are FixPitch sensors based on the Anisotropic MagnetoResistive (AMR) effect.
These consist of two Wheatstone bridges that are shifted relative to each other. This means that the sensors are adapted to a fixed pole pitch of the measuring scale. When used at a suitable pole pitch, the sensors generate sine and cosine signals at the output.
All sensors in the AL700 family feature PerfectWave technology and deliver extremely low harmonic output signals.
Furthermore, the PurePitch sensor design is predominantly implemented in the AL700 sensor family. The sensors thus form an average value of the magnetic signals over several poles without delay and without external calculation. The accuracy of the sensor signals can thus be increased, as individual errors in the measurement scale have less influence.
The sensors are available in various processing forms. The sensors are available as bare versions for direct mounting using chip-on-board technology. For SMD assembly on a PCB edge, Sensitec offers the sensors in a special SIL6 or LGA6 package.
The LGA6 package offers the advantage that all sensors have identical pinning. This means that different sensors can be used with the same basic layout.
AMR FixPitch sensor adapted to 0.5 mm pole length
Technical documents
• Data sheet
AMR FixPitch sensor adapted to 1.0 mm pole length
Technical documents
• Data sheet
Digikey-Online Shop
AMR FixPitch sensor adapted to 2.0 mm pole length
Technical documents
• Data sheet
Digikey-Online Shop
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AMR FixPitch sensor (high-impedance) adapted to 2.5 mm pole length
Technical documents
• Data sheet
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AMR FixPitch sensor adapted to 5.0 mm pole length
Technical documents
• Data sheet
Digikey-Online Shop
Advantages
Applications
Product details
The AFF755 and AFF756 are low-noise magnetic field sensors based on the anisotropic magnetoresistive (AMR) effect and are designed to detect weak magnetic fields, including the earth’s magnetic field (< 20 μG or < 2 nT). Both sensors feature a Wheatstone bridge with an integrated flip coil for offset correction, which reduces the temperature coefficient of the offset by a factor of 100.
The AFF755 supports a flip current of 150 mA with a voltage drop below 0.5 V, allowing three sensors to be connected in series for 3-axis measurements, which is ideal for battery-powered devices. It is available in an SO8 package.
The AFF756 offers similar functionality and is available in an LGA housing.
AMR field sensor incl. compensation coil
Technical documents
• Data sheet
AMR field sensor incl. compensation coil
Technical documents
• Data sheet
Advantages
Applications
Product details