Design of SFQ Circuits and Their Measurement

Kazunori MIYAHARA  Shuichi NAGASAWA  Haruhiro HASEGAWA  Tatsunori HASHIMOTO  Hideo SUZUKI  Youichi ENOMOTO  

IEICE TRANSACTIONS on Electronics   Vol.E85-C   No.3   pp.603-607
Publication Date: 2002/03/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Special Issue on Superconductive Electronics)
Category: Digital Devices and Their Applications
AD converter,  decimation filter,  superconducting memory,  SFQ circuit,  sigma-delta modulator,  

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In this paper, we describe our SFQ circuit design and measurement carried out in SRL-ISTEC. We are studying an oversampling sigma-delta modulator and a counter-type decimation filter with multistage structure for developing AD converters for software-defined radio application. We are also developing a superconducting memory, whose peripheral circuits are constructed with SFQ circuits.