DOI: 10.36347/sjet

Pages: 68-72

Full adder is a basic building block of many application specific integrated circuits. The paper evaluates and compares the performance of various full adder circuits which are designed using techniques such as XOR, transmission gates, multiplexers etc. Also a full adder circuit designed using multiplexer is proposed. The performance of these circuits is based on 180nm process model at supply voltage of 2.5V. The TSPICE simulation results show that the proposed circuit’s performance is better as compare to the circuits that are found in literature whose performance is evaluated.