Low Power Comparator Design -A Review

TL;DRAbstract

One of the most important analog circuits required in many analog integrated circuits is comparator. It is used for the comparison between two same or different electrical signals. The Comparator design becomes an important issue when design technology is scaled down. Due to the non-linear behaviour of threshold voltage (VT) when design technology is scaled down, performance of Comparator is most affected. Many versions of comparator are proposed to achieve desirable output in sub-micron and deep sub-micron design technologies. The selection of particular topology is dependent upon the requirements and applications of the design. Low power circuit design has emerged as a principal theme in today’s electronics industry. In this paper comparator architecture their design parameter, study about offset voltage and sources of power and their estimation and reduction technique are discussed. This paper help the practising engineers/ beginners in this field, able to know what are the signific

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