A clocked differential switch logic using floating-gate MOS transistors

A novel differential dynamic CMOS logic using multiple-input floating-gate MOS(FGMOS) transistors is proposed. In this circuit family, a pair of n-channel multiple-input FGMOS pull down logic networks is used to replace the nMOS logic tree in the conventional dynamic differential cascode voltage switch logic circuit. A simple synthesis technique of the n-channel multiple-input FGMOS logic tree by employing summation signal is also discussed. By using multiple-input FGMOS, the logic tree can be significantly simplified. HSPICE simulations using TSMC 0.35μm 2-ploy 4-metal CMOS technology have verified the effectiveness of the proposed design scheme.