Abstract
Analysis and design of a high-speed comparator with improved input referred offset is presented in this paper. The proposed comparator is designed in TSMC low power CMOS technology under 1.2 V power supply. The new presented comparator has a low power consumption and utilizes dual offset cancellation technique. The minimum convertible input voltage is calculated to be 52 μV and the propagation delay at this worst case is equal to 219 ps. The power consumption at 1 GHz clock frequency is 755 μW. Monte Carlo simulation with 500 points iteration shows that the standard deviation of the input referred offset is about 723 μV.
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