A new methodology for understanding single-event transient (SET) phenomena
in analog circuits is described. Device and circuit simulation techniques a
re coupled in order to reproduce experimental data obtained from the Nation
al Semiconductor LM124 operational amplifier and to determine the most sens
itive parts of the integrated circuit, Experimental data obtained at the Ph
ysical Nuclear Institute from a low-power voltage regulator that uses the L
M124 are also used to illustrate the method.