Consider a common setup using a target magnet disc plus three digital Hall-effect sensors (120° electrical apart) on a circuit ... a compatible encoder output driver. The three basic types ...

Using of basic building blocks in different ways to make complex circuit is a common axiom in Digital Logic design ... Glitch-free multiplexer to complex circuits like custom CDC Module, Encoders, ...

The circuit is based on a low cost Bourns digital encoder. Visit their page www.bourns.com, to see a complete selection of these devices.