Study of Performance of High-Speed Low-Power Differential Input Based Dynamic Comparator Using 22 nm CMOS Technology

This work studies the performance of high-speed and low power differential comparator reported by Hossein Ghasemian et al [1] in 2019 using 22 nm strained-Si CMOS technology. The performance was studied using SPICE tools and simulations were carried at room temperature. The power supply voltage used is 800 mV. The comparator exhibited a delay of 26.85 pS and power of 268 μW at 300 K. This work also investigates the impact of temperature on delay and power characteristics of differential comparator which is considered as a promising choice for future ADCs (analog-to-digital converters) in different of systems like video systems, Ethernet, health-care, and wireless communications.