Abstract
We have been investigating interface circuits between rapid single-flux-quantum circuits and adiabatic quantum-flux-parametron (AQFP) circuits for use in high-speed low-power hybrid computing system. These interface circuits also enable us to use long-distance interconnections between AQFP gates. In this study, we fabricated and demonstrated AQFP circuits, including long interconnections of passive transmission lines (PTLs), in which the interface circuits were used to convert the signal currents of the AQFP gates into single-flux-quantum pulses traveling along PTLs. The length of each PTL was approximately 4.3 mm. During low-speed measurements, correct operations with wide bias margins were confirmed.
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