Time-Domain Analog Circuit for Nano CMOS VLSI

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We have achieved the followings for time-domain analog circuit technology in nano CMOS VLSI:(1) High-speed, low-power AD converter architecture using time-domain redundancy algorithm.(2) Two novel time-to-digital converter architectures2-1) Stochastic time-to-digital converter with self-calibration2-2) High-resolution, low-power time-to-digital converter by improving the vernia-type architecture.(3) High-resolution, low-power digital PMW generator architecture and its application to digitally-controlled power supply(4) EMI reduction spread-spectrum clocking algorithm with combination of PWM and PPM (pulse position modulation) in digitally-controlled power supply.(5) Development of all digital phase-clocked loop circuit for TV tuner application with fast frequency locking.(6) Low-noise high-frequency waveform sampling method.These results have been transferred to industry through patents and papers.