Allegro a112x chopper stabilised precision hall effect unipolar switches 25g35g allegro a1120elhlt t this hall effect unipolar switch is a precision chopper stabilised device that is extremely temperature stable and designed to be highly resistant to physical stress the ic includes a voltage regulator hall voltage generator small signal amplifier and schmitt trigger the on board regulator enables operation over a wide supply voltage range including 3v applications a south pole of suff