NXP Magneto-Resistive Angular Sensors

NXP's KMZ41 Magnetic Field Sensor is a sensitive magnetic field sensor, employing the magneto-resistive effect of thin film permalloy. The sensor contains two galvanically separated Wheatstone bridges, which enclose an angle of 45 degrees. A rotating magnetic field strength > 40 kA/m (recommended field strength > 100 kA/m) in the surface parallel to the chip (x-y plane) will deliver two independent sinusoidal output signals, one following a cos(2α) and the second following a sin(2α) function. The sensor can be operated at any frequency between DC and 1 MHz.

 View Products Detail

• Accurate and reliable angle measurement
• Mechanical robustness, contactless principle
• Wear-free operation

• Accuracy independent of mechanical tolerances
• Extended temperature range

NXP's KMZ43T Magnetic Field Sensor is a sensitive magnetic field sensor, employing the magnetoresistive effect of thin-film permalloy. The sensor contains two galvanic separated Wheatstone bridges, at a relative angle of 45° to one another. A rotating magnetic field in the x-y plane will produce two independent sinusoidal output signals, one a function of +cos(2α) and the second a function of +sin(2α), α being the angle between sensor and field direction (see Figure 2). The KMZ43T is suited to high precision angle measurement applications under low field conditions (saturation field strength 25 kA/m). The sensor can be operated at any frequency between 0 Hz and 1 MHz.

View Products Detail

• Accurate and reliable angle measurement
• Mechanical robustness, contactless principle
• Wear-free operation
• Accuracy independent of mechanical tolerances
• Extended temperature range

• Steering angle and torsion
• Window wipers
• Headlight adjustment
• Fuel level
• Motor positioning
• Mirror positioning

NXP's KMZ49 Magnetic Field Sensor is a sensitive magnetic field sensor, employing the magnetoresistive effect of thin-film permalloy. The sensor contains two galvanic separated Wheatstone bridges, at a relative angle of 45º to each other. A rotating magnetic field in the x-y plane will produce two independent sinusoidal output signals, one a function of +cos(2α) and the second a function of +sin(2α), α being the angle between sensor and field direction (see Figure 2). The KMZ49 is suited to high precision angle measurement applications under low field conditions (saturation field strength 25 kA/m). The sensor can be operated at any frequency between 0 Hz and 1 MHz.

View Products Detail

• Accurate and reliable angle measurement
• Mechanical robustness, contactless principle
• Wear-free operation
• Accuracy independent of mechanical tolerances
• Extended temperature range

• Steering angle and torsion
• Window wipers
• Headlight adjustment
• Fuel level
• Motor positioning
• Mirror positioning

NXP's KMZ60 Magnetoresistive Sensor provides amplified analog sinusoidal output signals with improved signal-to-noise behavior for high resolution ADC inputs. The sensor is designed for use in brushless motors and steering applications. It provides a selectable compensation of its temperature coefficients and a temperature reference output functionality. For safety-critical applications, a broken-bond wire detection is implemented. The KMZ60 incorporates NXP’s latest magnetoresistive sensor chip in six-inch technology and a unique signal conditioning ASIC developed in automotive-compliant process technology. The KMZ60 is specially designed to improve the overall performance and increase robustness in automotive and industrial applications. A power-down mode is available.

View Products Detail

• Temperature range up to 150 °C ambient
• Automotive qualification according AEC-Q100
• Excellent EMC and ESD performance
• Selectable temperature coefficient compensation
• Low current consumption in power-down mode
• Temperature reference output voltage
• Reflow capable due to MSL1
• Dark green package
• Supply voltage range 2.7 to 5.5 V

• BLDC motor commutation
• Electronic Power Steering (EPS)
• Steering angle measurement
• Window wiper position detection
• Contactless angle measurement