Design of novel full adder based on resonant tunneling diode

Abstract

The resonant tunneling diode (RTD) has attracted much attention because of its unique negative differential resistance (NDR) characteristic, RTD increases the powerful logic function of a single gate and is more suitable to implement the threshold gates. Recently, the generalized threshold gate (GTG) and the multi-threshold threshold gate (MTTG) have been proposed, which provide the more based circuit structures of RTDs. Meanwhile, the RTD full adder circuits with GTG and MTTG circuit structures have been proposed. In this paper, a novel full adder circuit based on RTD is proposed, compare to previous designs, the novel proposed circuit has better performance, which uses fewer devices and reduces 3.6%-11.5% power.