Continuous-Time Active Filter ...

Continuous-Time Active Filter DesignDeliyannis, Theodore L. et al "Filter Fundamentals" Continuous-Time Active Filter Design Boca Raton: CRC Press LLC,1999

Chapter 1
Filter Fundamentals

1.1

Introduction

Continuous-time active lters are active networks (circuits) with characteristics that make them useful in today’s system design. Their response can be predetermined once their excitation is known, provided that their characteristic function is known or can be derived from their circuit diagram. Thus, it is important for the lter designer to be familiar with the concepts relevant to lter characterization. These useful concepts are reviewed in this chapter. For motivation, we deal with the lter characterization and the possible responses rst. In order to pursue these further, we need to consider certain fundamentals; the a