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We describe the design of a new oversampled analog-to-digital converter (ADC) based on phase modulation-demodulation (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...
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