High-performance complementary metal-oxide-superconductor field effect transistor (CMOSuFET) current-mode operational amplifier

A high-performance CMOSuFET current-mode operational amplifier is introduced using a MOSuFET, with P type NCCO (normal conducting copper oxide) as substrate, P type HTCOSu (high-temperature copper oxide superconductor) as drain and source electrodes and formed through the proximity effect. We study the operation and characteristics of the superconducting operational amplifier. It shows high current gain and wide band, is significantly less power hungry than a semiconductor CMOSFET operational amplifier and has the possibility of acting as a high-performance building block of the current-mode analogue VLSI (very-large-scale integrated) inside a discrete time or continuous time signal processing system. (author)