DocumentCode
15717
Title
9 bit superconductive single-flux-quantum digital-to-analogue converter
Author
Mizugaki, Y. ; Takahashi, Y. ; Shimada, Hiroki ; Maezawa, M.
Author_Institution
Univ. of Electro-Commun., Chofu, Japan
Volume
50
Issue
22
fYear
2014
fDate
10 23 2014
Firstpage
1637
Lastpage
1639
Abstract
The design and operation of a 9 bit superconductive single-flux-quantum (SFQ) digital-to-analogue converter (DAC) are presented. The DAC comprises a 9 bit variable SFQ pulse number multiplier and a 100-fold voltage multiplier. An SFQ pulse-frequency modulation technique is employed for coding the analogue output voltage. The DAC is fabricated using an Nb Josephson integration technology. Its output voltage waveform, the amplitude of which is up to 2.54 mVpp, is controlled by digital input signals from a room-temperature data generator.
Keywords
digital-analogue conversion; niobium; pulse frequency modulation; Josephson integration technology; Nb; PFM technique; PNM; SFQ digital-to-analogue converter; data generator; digital input signals; pulse number multiplier; pulse-frequency modulation; superconductive single-flux-quantum DAC; temperature 293 K to 298 K; word length 9 bit;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2014.1926
Filename
6937286
Link To Document