A high-speed analog-to-digital converter using Josephson self-gating-AND comparators

A Josephson Analog-to-Digital (A/D) converter which employs Self-Gating-AND (SGA) circuits as comparators has been designed and experimentally investigated. A functional description of the SGA is presented and the design of a four-bit A/D converter is described. High-speed measurements demonstrate f...

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Bibliographic Details
Published inIEEE transactions on magnetics Vol. 21; no. 2; pp. 200 - 203
Main Authors Petersen, D., Ko, H., Jewett, R., Nakajima, K., Nandakumar, V., Spargo, J., Van Duzer, T.
Format Journal Article
LanguageEnglish
Published IEEE 01.03.1985
Subjects
Analog-digital conversion
Apertures
Clocks
Critical current
Josephson junctions
Quantization
SQUIDs
Switches
Switching circuits
Voltage
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Summary:A Josephson Analog-to-Digital (A/D) converter which employs Self-Gating-AND (SGA) circuits as comparators has been designed and experimentally investigated. A functional description of the SGA is presented and the design of a four-bit A/D converter is described. High-speed measurements demonstrate four-bit quantization of 280 MHz sinusiodal inputs, and three-bit quantization of 499 MHz inputs at a 1.0 GHz conversion rate.
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ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.1985.1063833