Single-Ended vs Differential [hlp]

[No one]

Hello Everyone;
What is the relation between a "single-ended" quantity and its "differential" counterpart?

 

[it_boy]

Usually the value of the differential signal depends on the difference in the amplitude between the two signals and the phase difference between them.

 

[Eugen_E]

The single-ended or differential configuration is chosed by the designer, depending on application.
Single-ended - ground is the return path for the signal.
Differential - ground is not used as a reference, so the ground coupled noise is eliminated.
Differential - because the signal subtraction, any common mode signal (same amplitude and phase with reference to gropund on both inputs) is eliminated - egg parasitic signals present on long balanced cables.

To convert between single ended <-> differential, u can use a transformer or coupler.