Title :
5 GHz Josephson A/D converter
Author :
Ohara, Shinya ; Imamura, Takashi ; Hasuo, S.
Author_Institution :
Fujitsu Lab. Ltd., Atsugi
fDate :
7/7/1988 12:00:00 AM
Abstract :
A four-bit A/D convertor using Nb/AlOx/Nb Josephson junctions was fabricated. The circuit was designed to preserve the matching of characteristic impedances at all nodes. Four-bit A/D conversion was confirmed at a low frequency. The A/D convertor correctly operated at up to 5 GHz for two-bit conversion
Keywords :
aluminium compounds; analogue-digital conversion; niobium; superconducting junction devices; superconducting logic circuits; 2 bits; 4 bits; 5 GHz; Josephson A/D converter; Nb-AlOx-Nb; four-bit A/D convertor; matching of characteristic impedances; two-bit conversion;
Journal_Title :
Electronics Letters
