50 GHz Multiplexer and Demultiplexer Designs with On-Chip Testing

Lizhen ZHENG  Xiaofan MENG  Stephen WHITELEY  Theodore Van DUZER 

Publication
IEICE TRANSACTIONS on Electronics  Vol.E85-C  No.3  pp.621-624
Publication Date: 2002/03/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Superconductive Electronics)
Category: Digital Devices and Their Applications
Keyword: 
superconductive digital circuits,  single-flux-quantum circuit,  multiplexer,  demultiplexer (DMUX), 

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Summary: 
We present the design of dual rail Data Driven Self Timed (DDST) DEMUX and MUX circuits for 50 GHz operation. The chosen current density is 6.5 kA/cm2 and simulations show good margins for speeds exceeding 50 GHz. Our previously reported dual-rail on-chip test system is also scaled up for 50 GHz operation.