Contributed by Richard Dixon, Senior Analyst MEMS, iSuppli
Back in February 2009 the iSuppli MEMS and sensor team reported on trends in the automotive magnetic sensor market, and has since completed a comprehensive report on the whole market for silicon magnetic sensor elements and ICs – predominantly Hall, asymmetric magnetoresistive (AMR) and giant magnetoresistive (GMR) based devices. This article provides the cliff notes of our special report and briefly compares different technologies and highlights just some of the many applications for this very pervasive sensor.
Where do these sensors play? The fields are broad and include:
- High-cost applications like industrial motors that require accurate knowledge of rotor position to control loads
- Mid-priced automotive sensor ICs that measure rotation speed angle, and position
- Low-cost consumer and mobile phone products