The linear Hall-effect sensor ICs' voltage output accurately tracks the changes in magnetic flux density. In the quiescent state (no magnetic field), the output is ideally equal to one-half of the supply voltage over the operating voltage and temperature ranges. An increasing south-pole magnetic field will increase the voltage from its quiescent voltage. Conversely, an increasing north-pole field will decrease the voltage from its quiescent voltage. These parts are designed for the measurement of angle, proximity, motion, and the magnetic flux from current. They are magnetically driven mirrors of mechanical events. Allegro offers devices with outputs at various sensitivities.
