Analog-to-digital converter based on RSFQ technology for radio astronomy applications

Details Analog-to-digital converter based on RSFQ technology for radio astronomy applications Analog-to-digital converter based on RSFQ technology for radio astronomy applications

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001susct..14.1106m&link_type=abstract

Superconductor Science and Technology, Volume 14, Issue 12, pp. 1106-1110 (2001).

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We are developing an analog-to-digital converter (ADC) based on rapid single-flux quantum technology for radio-astronomic spectroscopy applications where very wide bandwidth is required and relatively small resolution is sufficient. The ADC consists of periodic-flash comparators, a demultiplexer and output drivers; and is sufficiently simple to be implemented on a single chip using a conventional 2-3 μm Nb trilayer technology. A 2-bit ADC has been designed for operation at 16 GHz of the sampling frequency. All the subsystems of the ADC have been fabricated using standard 1.6 kA cm-2 Nb/AlOx/Nb technology and have been successfully tested.

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