Allegro a1395 linear hall effect sensor 3v tri state output select sleep mode allegro a1395sehlt t the a1395sehlt t is a hall effect sensor that provides a ratiometric voltage output that is directly proportional to an applied magnetic field a user selectable sleep mode minimises current consumption whilst allowing the sensor to retain sufficient sensitivity the ic has bicmos monolithic circuitry that integrates a hall element temperature compensating circuitry to reduce intrinsic sensiti