Optimizing integrated circuits: Design and analysis of an efficient 4-bit absolute-value detector

Abstract

Amidst rapid advancements in the realm of computer science, integrated circuits emerge as pivotal to technological progression, influencing a diverse range of sectors significantly. This study delves into a 4-bit absolute-value detector, a crucial tool in signal detection, which evaluates the magnitude of a given inputs absolute value against a predetermined threshold and conveys the outcome. The paper presents an innovative, optimized design for a 4-bit absolute-value detector, employing CMOS technology. A novel, efficient 3-bit adder is developed and incorporated in the circuit to minimize gate delay and energy usage. By fine-tuning the applied voltage (Vdd) and implementing gate sizing, the delay is maintained at approximately 1.5 times the minimum possible delay, while ensuring low power consumption. The defined parameters for this detector are 145.05 FO4 (0.82V) and 7.23C Eu (0.82V). The design methodologies and strategic insights shared in this paper form a foundational basis for future enhancements in signal processing technologies, potentially driving these fields towards a path of accelerated, robust, and sustainable growth.