Delay area efficient low voltage FVF based current comparator

Abstract

This paper presents an improved current comparator using flipped voltage follower (FVF) to obtain the single supply voltage. This circuit exhibits short propagation delay and occupies a small chip area. The proposed circuit has been simulated employing PSpice simulator for 0.18 μm CMOS technology and a comparison has been performed with its non FVF counterpart to contrast its effectiveness, simplicity, compactness and low power consumption.