The Crocus CTSX family of magnetic sensors is designed for sensing low magnetic fields. The advantages of these magnetic sensors include proprietary Thermal Assisted Switching (TAS) programming, Differential Thermal Assisted Programming (DTAP), high sensitivity, high linearity, excellent frequency response, and low power.
The Crocus series of magnetic sensors is composed of multiple magnetic tunnel junctions (MTJs) made of magnetic thin films. The MTJ cell is constructed of two magnetic layers separated by a thin oxide which serves as a tunnel oxide. One of the two magnetic layers has a fixed magnetic orientation and it is called a reference layer. The other magnetic layer, called a sensing layer, has flexibility of changing orientation in the presence of magnetic field. Consequently, the resistance of a sensor changes in the presence of magnetic field. The change of resistance can be directly correlated to the intensity and angle of a magnetic field. Crocus has introduced multiple innovations around this basic principle in developing its magnetic field sensor product line.
Crocus Technology sensor devices provide high stability, as well as highly reliable performance over a wide range of operating temperatures up to +250˚C.
- High sensitivity
- Magnetic field detection without external signal processing
- Multiple architectures
- High temperature operation
- High frequency performance
- Low frequency performance
- High stability
- Industrial temperature range
- Low power
- Current sensing
- Rotation and speed
- Position sensing
- Angular position
- Multi-axis sensing
|Output Resistance, RO||RO < 1kΩ||1kΩ < RO < 20kΩ||RO > 20kΩ|
|Input Resistance, RIN||70Ω||70Ω||70Ω|
|Voltage Supply (VB)||1.2V||3V to 5V||5V to 15V|
|Input Bias (IIN )||25mA||25mA||25mA|
|Architecture||R, H, W||R, H, W||R, H, W|
R – Single resistor, H – Differential resistor, W – Wheatstone bridge