ZMT31 - Zetex Semiconductors

ZMT31 ANGLE SENSOR

The ZMT31 allows the contactless counting of thr revolutions of a rotating magnet which is mounted on the axis of a wheel. Zero output voltages of the Wheatstones bridges are used as trigger signals. The sense of rotation of the wheel is taken into account by comparing the signal outputs of both Wheatstone bridges which are proportional to sin2(␣) or sin2(␣+.

Features

· Measures the magnetic field hrot (> 50kA/m) generated by a permanent magnet which rotates over the sensor
· Magnetic field hrot parallel to the chip surface causes a sinusoidal output signal
· Package : SM-8 (available on 12mm tape) PINOUT DIAGRAM 1 2 3 4 8 7 6 5 APPLICATION
· Contactless counting of the revolutions of a rotating magnet (watermeters etc.)
· Contactless angular measurement
· Automotive (pedal position etc.)
· Contactless rotary switches
· Contactless potentiometer Pin connection: Bridge1: pin 1: -VO pin 5: +VO pin 8: -VB (GND) pin 4: +VB Bridge 2: pin 2: -VO pin 6: +VO pin.