Encoder Line Drivers

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Line Drivers are available for the HEDM-556X series encoders. The line driver offers enhanced performance when the encoder is used in noisy environments, or when it is required to drive long distances.

The HEDL-556x series utilize an industry standard line driver IC (26C31) which provides complementary outputs for each encoder channel. Thus, the output of the line driver encoder is A, A, B, B and I/I for three channel versions. Suggested line receivers are 26LS32 and 26LS33.

For additional information, please refer to:

  • HEDM-550x data sheet
  • 26C31 data sheet


  • Available on Encoder Kit Housings (HEDM-5500 Series)
  • Complementary Outputs
  • Industry Standard Line Driver IC
  • Single 5 V
  • Onboard Bypass Capacitor
  • 70 degrees C Operating Temperature

Lifecycle Status


Substance Compliance

  • RoHS6
    Fully Compliant
Specification Value
Lifecycle Active
Distrib. Inventory Yes
RoHS6 Compliant Y
Line Driver Y
Frequency 100.0
Motion Type Rotary
Optical Method Transmissive
Optical Radius (mm) 11.0
Shaft Diameter 8
Shaft Diameter (Unit of Measure) mm
Terminations Cable Connector With Strain Relief
Through Hole N
Resolution 1000 CPR
Shaft Diameter 8 mm
Product Change Notice (PCN)7 i