In most comparator designs, a signal is preamplified before it is fed to the decision circuit which actually makes comparison. It is also desirable that the total comparator propagation delay, as well as its dispersion, is dominated by the delay and the dispersion of the preamplifier.This paper presents the analysis of the propagation delay in a multistage preamplifier and proposes a way to minimize the propagation delay dispersion by a non-even distribution of gain in the amplifier chain.