A simple high-speed low current comparator

Abstract

A high-speed low current comparator with low input impedance using a simple biasing method is proposed. Simulation results demonstrate the propagation delay is about 2.8 nsec and the average power consumption is 0.58 mW for 0.1 /spl mu/A input current at supply voltage of 3 V using 0.35 /spl mu/m CMOS technology.