Performance Analysis of Comparator for IoT Applications

Wearable devices are a boon for uninterrupted real-time monitoring of personal health. Cost, power consumption, and limited device dimensions are the critical issues which need to be handled carefully while designing these battery-powered devices. These devices involve high-end processors dedicated for complex signal processing. The arithmetic units like comparators constitute the core of data path and an addressing unit for these processors. This work exhaustively compares the latest version of comparators pertaining to the application of low-power, high-speed wearables. The analysis is performed using HSPICE environment at 90 nm process technology. The critical path delay of the dynamic version turns out to be 17.63% less than static. The power consumption of static comparator is 66.66% less as compared to dynamic counterpart.