What are they good for?

With our integrated Hall sensors the magnetic field of permanent magnetic devices, coils and even single current lines can be measured. Their special feature is not only a very high sensitivity and very low noise but the potential to be integrated together with other electronic components, such as amplifiers, A/D-converters, temperature compensation etc.

Therefore this kind of magnetic field sensor can be part of complex systems on a chip. Such systems can contain a variety of additional sensors, e.g. for temperature, light, force.

What are the main features?

• Monolithic integration on a standard CMOS process 
  (together with other electronic components)
• Low power consumption (MAGFET element)
• Low noise (normal hall element)
• One single power supply voltage   

Datasheet of realized sensors.


How does such a sensor work?

The sensor consists of a hall element which is operated with a bias current through the sensor. The bias current has direct influence on the resulting sensitivity: the higher the bias current the higher the sensitivity.

For more information see magnet_e.pdf (91 kb)