Optimized Adder Cells for Ternary Ripple-Carry Addition

Abstract

The unique characteristic of Ternary ripple-carry addition enables us to optimize Ternary Full Adder for this specific application. Carbon nanotube field effect transistors are used in this paper to design new Ternary Half and Full Adders, which are essential components of Ternary ripple-carry adder. The novel designs take the sum of input variables as a single input signal, and generate outputs in a way which is far more efficient than the previously presented similar structures. The new ripple-carry adder operates rapidly, with high performance, and low-transistor-count.