Inverting Amplifier With Gain -1 * op-amp subcircuit .subckt small_signal_opamp 1 2 3 * connections: | | | * output | | * +ve input | * -ve input Ginput 0 4 2 3 0.19m Iopen1 2 0 0A ; redundant connection made at +ve input terminal Iopen2 3 0 0A ; redundant connection made at -ve input terminal R1 4 0 1.323G C1 4 0 30p Eoutput 1 0 4 0 1 .ends small_signal_opamp ** Main Circuit ** * signal source Vi 3 0 AC 1V 0Degrees Xopamp 1 0 2 small_signal_opamp R1 3 2 1k R2 2 1 1k ** Analysis Requests ** .AC DEC 5 0.1Hz 100MegHz ** Output Requests ** .PRINT AC V(3) V(1) .probe .end