Low Power Ripple Carry Adder Using Hybrid 1-Bit Full Adder Circuit

Abstract

Full adder circuit has a vital role in applications such as microprocessors, microcontrollers and DSP architecture. The aim of this work to design low power Ripple carry adder using hybrid 1-bit full adder with small consumption of power and high performance. Performance parameters like power, delay and power-delay product (PDP) has been analyzed. To achieve the above-said objective, hybrid adders are designed in such a way with different topology than earlier ones. RCA has been designed in SPICE 90nm technology with 1.2 supply voltage.