NXP Semiconductors KMZ52
The KMZ52 is an extremely sensitive magnetic field sensor, employing the magnetoresistive effect of thin-film permalloy. The sensor contains two magnetoresistive Wheatstone bridges physically offset from one another by 90° and integrated compensation and set/reset coils. The integrated compensation coils allow magnetic field measurement with current feedback loops to generate outputs that are independent of drift in sensitivity.| Part No. | KMZ52 |
|---|---|
| Datasheet | KMZ52 Download |
| Manufacturer |  NXP Semiconductors |
| Description | Magnetic field sensor |
| Buy | Stock & Price |
FEATURES
● High sensitivity● Integrated compensation coil
● Integrated set/reset coil.
APPLICATIONS
● Navigation● Current and earth magnetic field measurement
● Traffic detection.
DESCRIPTION
The orientation of sensitivity may be set or changed (flipped) by means of the integrated set/reset coils. A short current pulse should be applied to the compensation coils to recover (set) the sensor after exposure to strong disturbing magnetic fields. A negative current pulse will reset the sensor to reversed sensitivity. By use of periodically alternated flipping pulses and a lock-in amplifier, the output is made independent of sensor and amplifier offset. PINNING SYMBOL +Iflip2 VCC2 GND2 +Icomp2 GND1 +Icomp1 −Icomp1 −VO1 +VO1 −Iflip1 +Iflip1 VCC1 −Icomp2 −VO2 +VO2 −Iflip2 PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 KMZ52DESCRIPTION
flip coil bridge supply voltage ground compensation coil ground compensation coil compensation coil bridge output voltage bridge output voltage flip coil flip coil bridg...
