Authors: Mr. Ram Krishna
Abstract: In modern electronic systems, Analog-to-Digital Converters (ADC) play a crucial role in bridging the analog and digital domains. At the core of ADC architecture lies the comparator, responsible for fast and accurate voltage comparison. With the rapidly growing demand for portable and battery-operated devices, the need for high-speed and low-power CMOS comparators has increased. This review paper presents a comprehensive analysis of various design techniques and topologies aimed at achieving high speed and low power consumption. Key performance parameters such as propagation delay, power consumption, input offset voltage, and resolution are discussed in detail. Additionally, trade-offs involved in comparator design are highlighted, along with analysis of recent advancements such as dynamic comparators, adaptive biasing, and low-voltage operation. Furthermore, the role of high-performance comparators in different ADC architectures (such as flash, SAR, pipeline ADC) is also considered, guiding future research directions in this critical field.
DOI: http://doi.org/10.5281/zenodo.17836784
