A superconducting tracking A/D converter

A superconducting tracking A/D converter

The design and fabrication of a superconducting A/D converter using Josephson technology are described. The 4-b A/D converter circuit was fabricated using a ten-level all-Nb technology. It uses a self-aligned lift-off process to define the Nb-Al/sub 2/O/sub 3/-Nb Josephson junctions. Results from ex...

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Veröffentlicht in:IEEE journal of solid-state circuits 1991-02, Vol.26 (2), p.142-145
Hauptverfasser: Kuo, F., Dang, H., Whiteley, S.R., Radparvar, M.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Bandwidth
Circuit properties
Clocks
Counting circuits
Coupling circuits
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Exact sciences and technology
Fabrication
Linearity
Prototypes
Quantization
Signal convertors
SQUIDs
Testing
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Beschreibung
Zusammenfassung:The design and fabrication of a superconducting A/D converter using Josephson technology are described. The 4-b A/D converter circuit was fabricated using a ten-level all-Nb technology. It uses a self-aligned lift-off process to define the Nb-Al/sub 2/O/sub 3/-Nb Josephson junctions. Results from experiments performed on the prototype system at a few kilohertz sampling rate are presented.< >
ISSN:0018-9200
1558-173X
DOI:10.1109/4.68129