Design of adders with quaternary logic

For many processing operation addition forms the basis, that is from counting to multiplication to filtering. As a result adder circuit are important therefore we have proposed design of quaternary adders such as quaternary ripple carry adder, quaternary carry look-ahead adder, quaternary carry select adder. The various quaternary adders shows power consumption of 64% less as compared to binary circuits & delay reduction by 80% as compared to binary circuit.