
NXP Semiconductors.
General description
The X3G-OH047, X3G-OH048, X3T-OH047 and X3T-OH048 are sensitive magnetic field sensors, employing the magneto-resistive effect of thin film permalloy. The sensors contain two parallel supplied Wheatstone bridges at a relative angle of 45 to each other.
A rotating magnetic field in the surface parallel to the chip (x-y plane) will deliver two ndependent sinusoidal output signals, one following a cos(2) and the other following a sin(2) function, being the angle between sensor and field direction (see Figure 5 and Figure 6).
The X3G-OH047, X3G-OH048, X3T-OH047 and X3T-OH048 are suited for high precision angle measurement applications under low field conditions (saturation field strength 25 kA/m).
The sensors can be operated at any frequency between DC and 1 MHz.
FEATUREs and benefits
◾ Accurate and reliable angle measurement
◾ Mechanical robustness, contactless principle
◾ Wear-free operation
◾ Accuracy independent of mechanical tolerances
◾ Extended temperature range
APPLICATIONs
◾ Steering angle and torsion
◾ Window wipers
◾ Headlight adjustment
◾ Fuel level
◾ Motor positioning
◾ Mirror positioning