DocumentCode :
941826
Title :
Experimental results on single flux quantum logic
Author :
Benz, S.P. ; Burroughs, C.J. ; Hamilton, C.A.
Author_Institution :
Nat. Inst. of Sci. & Technol., Boulder, CO, USA
Volume :
3
Issue :
1
fYear :
1993
fDate :
3/1/1993 12:00:00 AM
Firstpage :
2582
Lastpage :
2585
Abstract :
The authors have optimized the design and calculated the margins for a number of single flux quantum (SFQ) logic elements, including AND, OR, XOR, splitter, DC-to-SFQ converter, and SFQ-to-DC converter. These are the fundamental building blocks necessary to construct more complex logic functions such as the half adder and full adder. Experimental tests of the primary gates, the AND, OR, XOR, and splitter, tests were made by imbedding each test gate between DC-to-SFQ converters at the inputs and SFQ-to-DC converters at the outputs. Automated testing of each circuit was used to determine functionality, optimum bias levels, and margins. The experimental bias current margins for each gate are consistent with the simulations.<>
Keywords :
automatic testing; logic design; logic gates; logic testing; superconducting junction devices; superconducting logic circuits; AND; DC-to-SFQ converter; OR; SFQ-to-DC converter; XOR; automated testing; bias current margins; optimum bias levels; single flux quantum logic; Adders; Circuit testing; DC-DC power converters; Design optimization; Josephson junctions; Logic design; Logic gates; NIST; SQUIDs; Voltage;
fLanguage :
English
Journal_Title :
Applied Superconductivity, IEEE Transactions on
Publisher :
ieee
ISSN :
1051-8223
Type :
jour
DOI :
10.1109/77.233528
Filename :
233528
Link To Document :
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