Superconductive A/D converters

A number of superconductive A/D (analog/digital) converter designs that show promise for superiority in high-bandwidth or high-resolution applications are known. On the high-resolution side, counting-type converters appear quite attractive. Voltage-to-frequency and tracking A/D converters are reviewed in this category. On the ultra-high-bandwidth side (greater than about 1 GHz) the parallel-type A/D converters seem to be advantageous. A number of parallel periodic-threshold A/D converters that have been attempted over the years as well as a fully parallel (2/sup N/-1 comparators) A/D converter are reviewed. >

[1]  G. S. Lee.  A variable hysteresis aperturing method for superconducting counting A/D conversion , 1989 .

[2]  Operation of a superconducting analog-to-digital converter at short conversion times , 1983 .

[3]  Clark A. Hamilton,et al.  Design limitations for superconducting A/D converters , 1981 .

[4]  T. Hornak,et al.  A 1-GHz 6-bit ADC system , 1987 .

[5]  J. W. Spargo,et al.  A pipelined gray code-to-natural binary decoder for use in a Josephson A/D converter , 1983 .

[6]  Arnold H. Silver,et al.  High speed non-latching SQUID binary ripple counter , 1985 .

[7]  C. Hamilton,et al.  100 GHz Binary counter based on DC SQUID's , 1982, IEEE Electron Device Letters.

[8]  D. G. McDonald,et al.  Picosecond applications of Josephson junctions , 1980, IEEE Transactions on Electron Devices.

[9]  Clark A. Hamilton,et al.  A superconducting 6-bit analog-to-digital converter with operation to 2 × 10 9 samples/second , 1980 .

[11]  T. Van Duzer,et al.  A new high-speed periodic-threshold comparator for use in a Josephson A/D converter , 1988 .

[12]  T. Duzer,et al.  A Josephson analog limiter circuit , 1989 .

[13]  J.P. Hurrell,et al.  Analog-to-digital conversion with unlatched SQUID's , 1980, IEEE Transactions on Electron Devices.

[14]  T. Duzer,et al.  Josephson analog-to-digital converter using self-gating-AND circuits as comparators , 1983 .

[15]  Yukio Akazawa,et al.  Si bipolar 2-GHz 6-bit flash A/D conversion LSI , 1988 .

[16]  T. Van Duzer,et al.  Speed-limiting factors in flash-type Josephson A/D converters , 1989 .

[17]  J. W. Spargo,et al.  A high-speed analog-to-digital converter using Josephson self-gating-AND comparators , 1985 .

[18]  Clark A. Hamilton,et al.  Superconducting A/D converter using latching comparators , 1985 .

[19]  H. Ko.  A flash Josephson A/D converter constructed with one-junction SQUIDs , 1989 .

[20]  R. C. Williamson,et al.  Wide-band electrooptic guided-wave analog-to-digital converters , 1984, Proceedings of the IEEE.

[21]  Richard E. Harris,et al.  Multiple-quantum interference superconducting analog-to-digital converter. [Patent application] , 1979 .

[22]  D. Petersen,et al.  Dynamic behavior of a Josephson latching comparator for use in a high-speed analog-to-digital converter , 1987 .

[23]  5 GHz Josephson A/D convertor , 1988 .