class OpAmp // parameter Real OLGain=1000 "Open Loop gain"; // parameter Real SatH=10 "Positive saturation voltage"; // parameter Real SatL=-10 "Negative Saturation voltage"; Pin in_p "Positive pin of the input port"; Pin in_n "Negative pin of the input port"; Pin out "Output pin"; equation in_p.i = 0; in_n.i = 0; in_p.v - in_n.v=0; end OpAmp;