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DS90LV011A: Inquiry About Connecting LVDS (DS90LV011A, DS90LV012A) in an Isolated State

Bae Kevin
Prodigy 80 points
Part Number: DS90LV011A

Tool/software:

Hello,
The driver and receiver have separate power supplies.
Therefore, their grounds are isolated.
Will it operate if only OUT+/- and IN+/- are connected?
The distance is 1 meter, and a twisted pair wire is used.

I would like to know if it can be used like RS485.

  • 0
    Guru 317280 points

    Neither LVDS nor RS-485 allows isolated grounds. Receivers allow a certain amount of ground shift; see the common-mode voltage specfication. (It's usually larger for RS-485, but always limited.)

    There are isolated LVDS and RS-485 transceivers. If you're using protocols designed for it, you can also use AC coupling.