A high-Tc 4-bit periodic threshold analog-to-digital converter

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Gerritsma, Gerrit J. and Verhoeven, Martin A.J. and Wiegerink, Remco J. and Rogalla, Horst (1997) A high-Tc 4-bit periodic threshold analog-to-digital converter. IEEE Transactions on Applied Superconductivity, 7 (2, Par). pp. 2987-2990. ISSN 1051-8223

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Abstract:Using ramp-type Josephson junctions a 4-bit periodic threshold ADC has been designed, fabricated and tested. Practical design constraints will be discussed in terms of noise immunity, flux flow, available technology, switching speed etc. In a period of four years we fabricated about 100 chips in order to bring the technology to an acceptable level and to test various designs and circuit layouts. This resulted in a basic comparator that is rather insensitive to the stray field generated by the analog input signal or variations in mask alignment during fabrication. The input signal is fed into the comparators using a resistive divider network. Full functionality at low frequencies has been demonstrated
Item Type:Article
Copyright:©1997 IEEE
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/24477
Official URL:http://dx.doi.org/10.1109/77.621946
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