Design of 1-bit Full Adder using β-driven threshold element

In this paper, we have designed a β driven 1-bit full-adder circuit. Circuits based on threshold elements have raised extensive interest in recent years. It uses a CMOS(complementary metal oxide semiconductor field effect transistor) pair with variable β. Transformation of a regular analytic representation of the threshold function in a ratio form is the concept behind the design of the β driven circuit. Addition is the most fundamental arithmetic operation hence full adders are one of the most basic building blocks for computing circuits. The major advantage of this β-driven threshold logic based full adder circuit design is that the Full Adder is its simplicity and lower transistor count. The circuit is done using PSpice.