Design of High-performance GDI Logic Based 8-tap FIR Filter At 45nm CMOS Technology Using Nikhilam Multiplier

Over the past few decades, advances in IC technology have steadily shrunk feature sizes, necessitating the placement of more operational circuits on every chip. In designing digital circuits, a novel GDI based circuit is indeed the center of consideration, since it requires less power and achieves greater efficiency. GDI-based circuits mimic CMOS transistors but feature fewer transistors with a greater capacity for performance and reliability. This paper investigates the modelling and implementation of a Finite Impulse-Response (FIR) block developed utilizing GDI-based circuits as well as basic blocks. In this study, an eight-tap FIR architecture relying on GDI cells is created. The results reveal that even a FIR architecture with eight taps and GDI delivers reduced power consumption and performance improvement.