Novel 10-T full adders realized by GDI structure

A full adder is one of the most commonly used digit circuit components, many improvements have been made to refine the architecture of a full adder. In this paper, 4 different types of 10 transistor (10-T) based full adder are proposed using a new design methodology called GDI (gate-diffusion input). In the meantime, a complete verification and comparison is also carried out to test the performance of the proposed adders. According to our test results, one of the proposed 10-T full adders is better than the prior designs which makes it a better alternative.