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Quarter-Rate Superconducting Modulator for Improved High Resolution Analog-to-Digital Converter
2007
IEEE transactions on applied superconductivity
We describe the design of a new oversampled analog-to-digital converter (ADC) based on phase modulationdemodulation (PMD) architecture. In a PMD ADC, the analog input signal modulates the phase of a periodic stream of fluxons applied to a modulator circuit for subsequent demodulation in a clocked synchronizer circuit to produce a digital code. The new modulator provides a way to quadruple the average fluxon transport rate, and hence the input dynamic range, by replacing the single junction
doi:10.1109/tasc.2007.897703
fatcat:4w6dz7kbbbbmlfpy5ft7n326z4