Broadcom 5V dc Optical Encoder with a 4 mm

Encoder Line Drivers for HEDS-55xx / 56xx / 9000 / 9100 / 9200 / 9040 / 9140 Series enhances the performance of encoders when they are used in noisy environments or when they are required to drive long distances. The encoder line drivers use an industry standard IC, AM26C31Q that provides complementary outputs for each encoder channel.

Single 5 V supply
On-board bypass capacitor

Avago Technologies Rotary Encoders