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This paper presents the design of a low-power multi-channel time-based analog-to-digital converter (ADC) for the instruments dedicated to high-energy physic experiments and biomedical imaging applications. The proposed ADC is realized by using two-step conversion scheme: the voltage-to-time conversion (VTC) and the digital-to-time conversion (TDC). In VTC, the classic Wilkinson-type architecture are...
A charge sharing clock scheme is proposed to feed a 5-stage double charge pump circuit. By reusing the charges in charging or discharging the parasitic capacitance during the pumping process, dynamic power loss is able to be reduced by nearly a half. Under 1V supply, simulation results show a maximum 10% efficiency increase, and the ripple noise is also reduced by a half comparing to the conventional...
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