Title :
Subthreshold Pass Transistor Logic for Ultra-Low Power Operation
Author :
Moalemi, V. ; Afzali-Kusha, Ali
Author_Institution :
Sch. of Electr. & Comput. Eng., Tehran Univ.
Abstract :
In this paper, we investigate subthreshold pass-transistor logics for ultra-low-power applications. The performance characteristics of different pass-transistor XOR structures operating in the subthreshold region have been compared in 65nm and 90nm technologies. The results of the simulations show that the subthreshold logics have some advantages compared to their strong inversion counterparts. The study includes both normal subthreshold pass-transistor logic (sub-PT) and dynamic threshold pass-transistor logic (sub-DTPT). When compared to the former, the latter logic reveals lower sensitivities to temperature and process variations.
Keywords :
logic design; logic gates; low-power electronics; transistor circuits; 65 nm; 90 nm; dynamic threshold pass-transistor logic; pass-transistor XOR structures; subthreshold pass transistor logic; subthreshold region; ultra-low power operation; CMOS logic circuits; CMOS technology; Computational modeling; Energy consumption; Frequency; Logic devices; MOSFETs; Space exploration; Temperature sensors; Threshold voltage;
Conference_Titel :
VLSI, 2007. ISVLSI '07. IEEE Computer Society Annual Symposium on
Conference_Location :
Porto Alegre
Print_ISBN :
0-7695-2896-1
DOI :
10.1109/ISVLSI.2007.94
