KwangSeok Kim, Young-Hwa Kim, Wonsik Yu, Seonghwan Cho
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引用次数: 55
Abstract
This paper presents a time-to-digital converter (TDC) using a novel pulse-train time amplifier. The proposed TDC exploits repetitive pulses with gated delay-lines for a calibration-free and programmable time amplification and quantization. Using this circuit, a 7-bit two-step time-to-digital converter is implemented. The prototype chip fabricated in 65nm CMOS process achieves 3.75ps of time resolution at 200Msps while consuming 3.6mW and occupying 0.02mm2.
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