Title :
A superconducting tracking A/D converter
Author :
Kuo, Feng ; Dang, Huan ; Whiteley, Stephen R. ; Radparvar, Masoud
Author_Institution :
HYPRES Inc., Elmsford, NY, USA
fDate :
2/1/1991 12:00:00 AM
Abstract :
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-Al2O3 -Nb Josephson junctions. Results from experiments performed on the prototype system at a few kilohertz sampling rate are presented
Keywords :
Josephson effect; analogue-digital conversion; superconducting integrated circuits; superconducting junction devices; ADC; Josephson technology; Nb-Al2O3-Nb; fabrication; self-aligned lift-off process; ten-level all-Nb technology; tracking A/D converter; Bandwidth; Clocks; Counting circuits; Coupling circuits; Fabrication; Linearity; Prototypes; Quantization; SQUIDs; Testing;
Journal_Title :
Solid-State Circuits, IEEE Journal of
