U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

Pulse-Driven Josephson Digital/Analog Converter

Published

Author(s)

Samuel Benz, Clark A. Hamilton, Charles J. Burroughs, Todd E. Harvey, Laurie Christian, J. X. Przybysz

Abstract

We have designed and demonstrated a pulse-driven Josephson digital/analog converter. When used as a programmable voltage standard, this device can synthesize metrologically accurate ac waveforms as well as stable dc voltages. We show through simulations that Josephson quantization produces a nearly ideal quantization noise spectrum when a junction is driven with a typical waveform produced by a digital code generator. This technique has been demonstrated in preliminary experiments with arrays of 1000 junctions clocked at frequencies up to 12 Gbit/s where sine waves of a few millivolts in amplitude were synthesized at frequencies up to 1 MHz.
Citation
IEEE Transactions on Applied Superconductivity
Volume
8
Issue
2
Pub Type
Journals

Keywords

digital/analog converter, frequency synthesis, Josephson junction, superconductivity
Sensors

Citation

Benz, S. , Hamilton, C. , Burroughs, C. , Harvey, T. , Christian, L. and Przybysz, J. (1998), Pulse-Driven Josephson Digital/Analog Converter, IEEE Transactions on Applied Superconductivity (Accessed September 19, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created May 31, 1998, Updated October 12, 2021