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Tunneling Magnetoresistive Sensors
 

Sensor Features
  • Good temperature stability
  • High sensitivity
  • Lower power consumption
  • Good linearity
  • no additional flux concentrator for increasing sensitivity
Typical applications
  • Proximity Switches
  • Magnetic field measurements
  • Rotational speed measurements
  • Angle measurements
  • Current sensing
  • Magnetic image sensing etc.


Comparison between different Magnetic Sensors
 

Technology Hall Effect AMR - Anisotropic Magnetoresistance GMR - Giant Magnetoresistance TMR - Tunneling Magnetoresistance
Power Consumption (mA) 5 ~ 5 1 ~ 10 1 ~ 10 0.001 ~ 0.6
Field Sensitivity (mV/V/Oe) ~ 0.74 1 ~ 3 1 ~ 3 ~ 100
Dynamic Range (Oe) ~ 30000 ~ 10 ~ 100 ~ 1000
Temperature Performance (C) -40 ~ 150 -40 ~ 150 -40 ~ 150 -40 ~ 200


Typical Application and Products
 

TMR (Tunneling Magnetoresistance) Switches
TMR Magnetic Field Sensors
TMR Gear Tooth Speed Sensors and Encoders
TMR Angle Sensors



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