Me and my systems team are trying to find a good quality quadrature encoder for our Motor Controller. We are currently aiming for one withof course Phase A, Phase B, and an index, but we are also looking into some with an internal counter. It is the hope of the team to get a high quality encder so that we don't need such a high quality processor. We have heard of Quadrature Encoders that were used on DSP boards, but currently are trying to find one on the market. It would be great if the quadrature encoder is under $5. Any help would be much appreciated.