Progress in Superconductivity
- Volume 3 Issue 2
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- Pages.172-177
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- 2002
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- 1229-4764(pISSN)
Simulation of RSFQ D/A Converter
Abstract
Superconductive digital to analog converters (DAC) based on Josephson effect produce the voltage steps with high precision and good stability Therefore, they can be applied to obtain a very accurate ac voltage standard. In this paper, we made a simulation study of Rapid Single Flux Quantum (RSFQ) DAC. RSFQ DAC was composed of Non-destructive Head Out (NDRO) cells, T flip-flops, D flip-flops, Splitters, and Confluence Buffers. Confluence Buffer was used in resetting the DACs. We also obtained operating margins of the important circuit parameters in simulations.
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