Analog Circuit Design Volume Three

Introduction

All the Different Paths to Analog

Every design has a beginning and an end. The beginning is pretty easy to define; the end can be production or a scrap piece. The function of an analog circuit can take various alternative paths from the beginning to the end.

With digital circuits, it doesn’t matter how you get there as long as the answer is correct. Digital is information, and as long as the computation ends correctly, the way it is achieved is less important. (Of course, there is timing and complexity, but these don’t define whether the output number is correct.) So in digital circuits, the information once is it computed, is the important end result.

Analog circuits are different. The path you take to the end result affects ...