two outputs which are independently activated by magnetic fields of opposite polarity. Each sensor IC includes a Hall voltage generator, two Schmitt triggers, a voltage regulator, output transistors, and on-board reverse polarity protection. The regulator enables these devices to operate from voltages ranging between 4.5 V and 24 V. On-chip compensation circuitry stabilizes the switch points over temperature. Each open-collector output is independently operated by the proper amount and polarity.