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논문 기본 정보

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(University of Science and Technology) (University of Science and Technology) (Electronics and Telecommunications Research Institute) (Electronics and Telecommunications Research Institute) (Korea Advanced Institute of Science and Technology) (Korea Advanced Institute of Science and Technology) (University of Science and Technology)
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대한전자공학회 대한전자공학회 학술대회 2025년도 대한전자공학회 하계학술대회 논문집
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    초록·키워드

    This paper presents a cryogenic energy-scalable comparator designed for image sensors in space telescopes. The proposed comparator maintains the fast comparison speed, high current efficiency (gm/ID), and intrinsic common-mode rejection ability of conventional floating inverter amplifier (FIA), while incorporating the energy scalability of voltage-controlled oscillator (VCO)-based comparators. The proposed comparator is implemented in an 11-bit cryo-CMOS SAR ADC, which is designed in 65-nm CMOS, and it achieves an SNDR of 65.2 dB and a Schreier FoM (FoMS) of 174 dB at a sampling rate of 5 MS/s.

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