A CMOS Comparator Using A 2-V Supply

Abstract

A simple CMOS Comparator which consumes less than 1mW from 2-V supply has been designed and simulated. For simple applications, a comparator can be realised from readily available OPAMP designs by removing the compensation circuitry. A CMOS Differential Amplifier which gives a single ended output has been used, this eliminates the need for a differential to single ended converter thus reducing the number of MOSFET's used. The measured performance demonstrates suitability for simple applications such as in oscillators.