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 April 26, 2024)
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Pulse-Driven Josephson Digital/Analog Converter
Published
Author(s)
, , , , 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
Citation
Created May 31, 1998, Updated October 12, 2021