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소스 팔로워 입력단을 이용하여 넓은 입력 공통모드 변화에 내성 있는 StrongARM 래치
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- Authors
- 장은정, 문성모, 박창주
- Issue Date
- 2026-06
- Citation
- 대한전자공학회 학술 대회 (하계) 2026, pp.1-4
- Publisher
- 대한전자공학회
- Language
- English
- Type
- Conference Paper
- Abstract
- This paper proposes an input common-modetolerant StrongARM latch using source followers. Although a conventional StrongARM latch offers near-zero static power and fast regenerative decision making, its pre-amplification gain, inputpair overdrive voltage, and regeneration condition can change significantly as the input common-mode voltage varies. This paper presents a sourcefollower- assisted StrongARM latch that reduces the common-mode-dependent input-referred noise (IRN) variations, which enhances design margin of noise for proposed comparator-based high-resolution ADCs. Simulations in a 65-nm CMOS process show that the IRN variations over an input common-mode sweep alleviated from 78.6% to 40.2%, corresponding to a 48.9% reduction in input common-mode-induced noise variation.
- KSP Keywords
- CMOS Process, Decision-making, Mode-dependent, Pre-amplification, Static Power, StrongArm latch, common-mode(CM), high-resolution(HR), overdrive voltage, proposed comparator