Title :
Multiple-valued source-coupled logic VLSI based on adaptive threshold control and its applications
Author :
Munirul, Haque Mohammad ; Kameyama, Michitaka
Author_Institution :
Graduate Sch. of Inf. Sci., Tohoku Univ., Sendai, Japan
Abstract :
A new multiple-valued current-mode (MVCM) integrated circuit, based on adaptive threshold voltage control (ATVC) is proposed for high-speed VLSI applications, while maintaining low power. Adaptive threshold voltages, which are changed in the opposite direction to an input signal, are generated so that the voltage difference between an input voltage and a threshold voltage is always larger than that of a fixed threshold voltage control (FTVC). Moreover shifting of an input to a lower voltage results in better performance. As a typical application of a high-performance arithmetic circuit, a radix-2 signed-digit full adder (SDFA) is designed in a 0.18-μm CMOS technology. Simulation results show that the speed of the SDFA, based on the proposed ATVC, is almost 1.7 times faster than that of conventional FTVC under normalized power consumption.
Keywords :
CMOS logic circuits; VLSI; adders; current-mode logic; high-speed integrated circuits; logic design; low-power electronics; multivalued logic circuits; threshold logic; 0.18 micron; ATVC; CMOS; SDFA; adaptive threshold voltage control; arithmetic circuits; current-mode integrated circuit; fixed threshold voltage control; high-speed VLSI; input voltage shifting; low power VLSI; multiple-valued source-coupled logic; radix-2 signed-digit full adder; Adaptive control; Application specific integrated circuits; CMOS technology; High speed integrated circuits; Logic; Programmable control; Signal generators; Threshold voltage; Very large scale integration; Voltage control;
Conference_Titel :
Multiple-Valued Logic, 2004. Proceedings. 34th International Symposium on
Print_ISBN :
0-7695-2130-4
DOI :
10.1109/ISMVL.2004.1319963
