kimmyo6
Newbie
Hi!
I always have this doubt when the circuit gets bigger and I end up going to the simulator almost blindly because I don't know where to start. Say you're designing an differential opamp with active pmos load and a nmos for the tail current. Assuming you want all 5 transistors in saturation, how do you begin your calculations? How is it done for bigger and more complex circuits? Allen makes a step-by-step hand calculations for a miller two stage op amp in his book and it seems to work fairly ok, but what about all other circuits? A latched comparator? A bandgap? Literature seems so confusing because everyone has a different way of doing it, unfortunatelly. If someone could shed a light, I'd appreciate.
I always have this doubt when the circuit gets bigger and I end up going to the simulator almost blindly because I don't know where to start. Say you're designing an differential opamp with active pmos load and a nmos for the tail current. Assuming you want all 5 transistors in saturation, how do you begin your calculations? How is it done for bigger and more complex circuits? Allen makes a step-by-step hand calculations for a miller two stage op amp in his book and it seems to work fairly ok, but what about all other circuits? A latched comparator? A bandgap? Literature seems so confusing because everyone has a different way of doing it, unfortunatelly. If someone could shed a light, I'd appreciate.