January 8, 2004 -- Noise represents the fundamental limit for many
signal-processing applications. As such, it is a key constraint for many
electronic designs, particularly interface circuits. Industry trends in
applications as disparate as test and measurement, medical imaging, and
high-speed data communications demand ever-increasing information densities.
Meanwhile, advancements in semiconductor processes enable greater
data-processing speeds and functional densities but at the cost of operating
supply voltage and, consequently, signal amplitude. The result is increasing
pressure on system designs to manage the noise performance of analog front ends.
By Joshua Israelsohn, Technical Editor
This brief introduction has been excerpted from the original copyrighted article.