An experimental digital SQUID with large dynamic range and low noise

An experimental digital SQUID with large dynamic range and low noise

A digital SQUID chip designed for large dynamic range and intrinsic sensitivity as good as an analog SQUID was fabricated and tested. It consists of a pickup coil, a SQUID amplifier, edge-triggered latching comparators, and a feedback loop using an integrating single-flux-quantum D/A converter. Prop...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:IEEE transactions on applied superconductivity 1995-06, Vol.5 (2), p.2129-2132
Hauptverfasser: Perng-Fei Yuh, Rylov, S.V.
Format: Artikel
Sprache:eng
Schlagworte:
Circuits
Clocks
Dynamic range
Feedback loop
Pulse inverters
Pulse transformers
SQUIDs
Superconducting coils
Superconducting device noise
Superconducting transmission lines
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A digital SQUID chip designed for large dynamic range and intrinsic sensitivity as good as an analog SQUID was fabricated and tested. It consists of a pickup coil, a SQUID amplifier, edge-triggered latching comparators, and a feedback loop using an integrating single-flux-quantum D/A converter. Proper operation of the chip was demonstrated, with the output one-bit data stream averaged and integrated to reconstruct the input signal. A sampling rate up to 500 MHz was achieved.< >
ISSN:1051-8223
1558-2515
DOI:10.1109/77.403003