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Does differential signalling always comes hand to hand with a negative feedback circuit?Else the 1s and 0s would be the same!because if we have ground in the inverting pin then the output voltage will be 0 regardless of the resistances.

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  • \$\begingroup\$ Is there a diagram to describe the arrangment you mention? \$\endgroup\$
    – AJN
    Oct 1, 2020 at 17:45

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No, not necessarily. The receiver might just compare if input A voltage is above or below input B voltage. So the absolute voltages are not that important, the difference is.

If you have 0V at the receiver inverting pin, and the receiver has a threshold of say 200mV, then the non-inverting pin being below 200mV is 0 and above 200mV is 1.

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