I would like to know the real characteristics of the output voltage offset of OPA.
What are the different between the dual supply power OPA VSS = -VCC and VSS = ground ?
Assume OPA's Vin = 25mV, VoL=40mV and used unity gain buffer.
If I used the dual supply OPA , and connect the Vss to negative voltage ( -0.1V ), the lowest output voltage of OPA will be 25mV or 40mV?