Circuit techniques for CMOS low-power high-performance multipliers

Abstract

In this paper we present circuit techniques for CMOS low-power high-performance multiplier design. Novel full adder circuits were simulated and fabricated using 0.8-/spl mu/m CMOS (in BiCMOS) technology. The complementary pass-transistor logic-transmission gate (CPL-TG) full adder implementation provided an energy savings of 50% compared to the conventional CMOS full adder. CPL implementation of the Booth encoder provided 30% power savings at 15% speed improvement compared to the static CMOS implementation. Although the circuits were optimized for (16/spl times/16)-b multiplier using the Booth algorithm, a (6/spl times/6)-b implementation was used as a test vehicle in order to reduce simulation time. For the (6/spl times/6)-b case, implementation based on CPL-TG resulted in 18% power savings and 30% speed improvement over conventional CMOS.