I am reading about common source amplifier with a current-mirror active load from the book Analog Integrated Circuit Design by Tony Chan Carusone, David Johns, Kenneth Martin. I am confused by the yellow sentence below:
For a fixed bias drain current,ID , the effective overdrive voltage is reduced by increasing the device width W.
From the formula that relates between Veff and W/L it is clear that Veff is reduced if W is increased. However, from the circuit on the picture, the basing network for Q1 is not shown. How to make the basing network for Q1 so that Veff of Q1 decreases when W increases?