Quasi-one junction SQUIDs as comparators for analog-to-digital conversion
- Hypres, Inc., Elmsford, NY (United States)
The authors have fabricated and tested comparators based on single junction Superconducting Quantum Interference Devices (SQUIDs). These comparators demonstrate the periodic behavior of multiple junction SQUIDs without the disturbances due to flux mode boundary crossings, promising higher speed. This paper demonstrates the proper functioning of all components of a full analog-to-digital converter, including the Quasi-One-Junction-SQUID (QOJS) and the sampling circuit to measure its output. The only problem observed is that the magnitude of the pulse in the Josephson sampler is too small to measure the full output of the QOJS. This has recently been corrected. Simulations indicate that 4 bits of resolution at 10 GHz input bandwidth, or higher resolution at low bandwidths, should be achievable.
- OSTI ID:
- 5921436
- Report Number(s):
- CONF-900944-; CODEN: IEMGA
- Journal Information:
- IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States), Vol. 27:2; Conference: 1990 applied superconductivity conference, Snowmass, CO (United States), 24-28 Sep 1990; ISSN 0018-9464
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
ANALOG-TO-DIGITAL CONVERTERS
FABRICATION
SQUID DEVICES
COMPUTERIZED SIMULATION
INTEGRATED CIRCUITS
JOSEPHSON JUNCTIONS
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
EQUIPMENT
FLUXMETERS
JUNCTIONS
MEASURING INSTRUMENTS
MICROELECTRONIC CIRCUITS
MICROWAVE EQUIPMENT
SIMULATION
SUPERCONDUCTING DEVICES
SUPERCONDUCTING JUNCTIONS
665412* - Superconducting Devices- (1992-)
665411 - Basic Superconductivity Studies- (1992-)
990200 - Mathematics & Computers