Allegro¡¯s solutions offer over a decade of ABS specific IC designs based on the industry¡¯s top professionals and vehicle manufacturers' expertise. These sensor ICs also incorporate over a decade of lessons learned through the harsh, automotive scrutiny of in-vehicle testing and production. Allegro¡¯s wheel speed sensors are offered in two current range options each using a two-wire, current output protocol. Direction information is offered in a two-wire, pulse width output protocol.