Design and analysis of Novel XOR/XNOR Based Hybrid Full Adder for IoT-Applications

Abstract

This work deals with designing a novel XOR-cell for attain full swing voltage at high-speed operation. It is the basic building block for the design of any kind of full adder. The performance analysis and driving capability of the adder completely depend on XOR-cell only. Nevertheless, this XOR-cell is the major power consumption block in any kind of adder which achieves the full swing based on the CMOS-inverter and CMOS-Pass Transistor Logic (C-PTL). Hybrid Full Adder(HFA) is designed using three modules i.e XOR-cell, Transmission gate(TG), and Level restorer (LR). Among these three designs, TG-gate has a superior quality of achieving high-speed operation and low short circuit power. Performance parameters such as power, delay, Power-delay Product (PDP), Energy-delay product (EDP) are calculated and the simulation results are performed at a frequency of 1GHz in cadence virtuoso tool - 45nm technology having a supply voltage (Vdd) of 0.8 V. This proposed Hybrid full adder is well suited for high-speed operation in IoT based-Applications.