Introduction and Motivation
Abstract
In this chapter, there is an inexorable trend in recent years to “go digital”—in other words, to do more and more signal processing in the digital domain due to a purported design flexibility. However, the world is an analog place and the use of analog processing allows electronic circuits to interact with the physical world. Not discounting the importance of digital signal processing (DSP) and other digital techniques, there are many analog building blocks such as operational amplifiers, transistor amplifiers, comparators, analog-to-digital (A/D) and digital-to-analog (D/A) converters, phase-locked loops, and voltage references (to name just a few) that are still used and will be used far into the ...
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