1 volt DC programmable Josephson voltage standard

@article{Burroughs19991VD,
  title={1 volt DC programmable Josephson voltage standard},
  author={C. J. Burroughs and S.P. Bent and T.E. Harvey and C.A. Hamilton},
  journal={IEEE Transactions on Applied Superconductivity},
  year={1999},
  volume={9},
  pages={4145-4149}
}
NIST has developed a programmable Josephson voltage standard (JVS) that produces intrinsically stable voltages that are programmable from -1.1 V to +1.1 V. The rapid settling time (1 /spl mu/s), large operating current margins (2 to 4 mA), and inherent step stability of this new system make it superior to a conventional JVS for many dc measurements. This improved performance is made possible by a new integrated-circuit technology using intrinsically shunted superconductor-normal-superconductor… 

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