Robust subthreshold logic for ultra-low power operation

2001/02/01 by H. Soeleman, Kaushik Roy, K. Roy +2
Engineering · #Advancements in Semiconductor Devices and Circuit Design #Analog and Mixed-Signal Circuit Design #Low-power high-performance VLSI design

paper · doi:10.1109/92.920822

openalex publication_date 2001/02/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/26

Abstract

Digital subthreshold logic circuits can be used for applications in the ultra-low power end of the design spectrum, where performance is of secondary importance. In this paper, we propose two different subthreshold logic families: 1) variable threshold voltage subthreshold CMOS (VT-Sub-CMOS) and 2) subthreshold dynamic threshold voltage MOS (Sub-DTMOS) logic. Both logic families have comparable power consumption as regular subthreshold CMOS logic (which is up to six orders of magnitude lower than that of normal strong inversion circuit) with superior robustness and tolerance to process and temperature variations than that of regular subthreshold CMOS logic.

Citations

• Low-power CMOS digital design

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