Zusammenfassung
This paper is based on pre layout simulations of 8T
and new proposed 9T full adder circuit that improves the
performance of 8T adder by sacrificing the MOS transistor
count by one. The proposed circuit consists of a new logic
which is used to implement Sum module. The proposed design
remarkably reduces power consumption hence power-delay
product (PDP) and improves temperature sustainability when
compared with an existing 8T adder. It also shows nearly 30%
improvement in threshold loss as compared to 8T full adder.
Therefore, in a nut shell proposed adder cell outperforms the
existing 8T adder in super threshold region and proves to be a
viable option for low power and energy efficient applications.
All simulations are performed on 90nm standard model on
Tanner EDA tool version 12.6.
Nutzer