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ADM3053 Common Mode Control

Question asked by emh203 on Jun 11, 2015
Latest reply on Jun 12, 2015 by RAnslow

I have a CAN network that will have 24 nodes spread over 200Meters.    I was planning on using the ADuM3053 for an isolated interface.

 

If I just use the CAN_L and CAN_H signals to connect the nodes,    What keeps the common mode under control?  I am trying to avoid sending GND2 down the cable....

 

It seemed that a split termination on the ends (2 sixty ohm) resistors with the center connected to Vref would help but I wanted to see what others have experienced.

 

Thoughts?

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