9 bit superconductive single‐flux‐quantum digital‐to‐analogue converter. Issue 22 (1st October 2014)

• Record Type: Journal Article
• Authors: Mizugaki, Y.; Takahashi, Y.; Shimada, H.; Maezawa, M.
• Is Part Of: Electronics letters. Volume 50:Issue 22(2014)
• Page Start: 1637
• Page End: 1639
• Publication Date: 2014-10-01
• Subjects: digital‐analogue conversion -- niobium -- pulse frequency modulation; superconductive single‐flux‐quantum DAC -- SFQ digital‐to‐analogue converter -- pulse number multiplier -- PNM -- pulse‐frequency modulation -- PFM technique -- Josephson integration technology -- digital input signals -- data generator -- word length 9 bit -- temperature 293 K to 298 K -- Nb; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2014.1926
• Languages: English
• ISSNs: 0013-5194

Abstract

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 m V pp, is controlled by digital input signals from a room‐temperature data generator.