Active Filters: Theory and Design, 1st Edition (Hardback) book cover

Active Filters

Theory and Design, 1st Edition

By S.A. Pactitis

CRC Press

288 pages | 168 B/W Illus.

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Hardback: 9781420054767
pub: 2007-11-01
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Description

Using an accessible yet rigorous approach, Active Filters: Theory and Design highlights the essential role of filters, especially analog active filters, in applications for seismology, brainwave research, speech and hearing studies, and other medical electronics. The book demonstrates how to design filters capable of meeting a given set of specifications.

Recognizing that circuit simulation by computer has become an indispensable verification tool both in analysis and in design, the author emphasizes the use of MicroCap for rapid test of the filter. He uses three basic filter types throughout the book: Butterworth, Chenyshev, and Bessel. These three types of filters are implemented with the Sallen-Key, infinite gain multiple feedback, state-variable, and biquad circuits that yield low-pass, high-pass, band-pass, and band-reject circuits. The book illustrates many examples of low-pass, high-pass, band-pass, and notch active filters in complete detail, including frequency normalizing and denormalizing techniques.

Design equations in each chapter provide students with a thorough grounding in how to implement designs. This detailed theoretical treatment gives you the tools to teach your students how to master filter design and analysis.

Table of Contents

INTRODUCTION

Filters and Signals

Basic Filter Types

The Mathematics of Elementary Filters

Why Active Filters?

Practical Applications

The Voltage-Controlled Voltage Source (VCVS)

SALLEN-KEY FILTERS

Introduction

Frequency Response Normalization

First-Order Low-Pass Filter

First-Order High-Pass Filter

Second-Order Filters

Low-Pass Filters

High-Pass Filters

Higher-Order Filters

Wide-Band Filters

Wide-Band Band-Reject Filters

Comments on VCVS Filters

Problems

MULTIFEEDBACK FILTERS'

Low-Pass Filters

High-Pass Filters

Higher-Order Filters

Band-Pass Filters

Band-Reject Filters

Comments on MFB Filters

Problems

FILTERS WITH THREE OP-AMPS

State Variable Filter

Biquad Filters

Problems

SENSITIVITY

Introduction

Some General Properties

Magnitude and Phase Sensitivities

Root Sensitivity

Problems

FILTERS WITH GIC

Introduction

Generalized Impedance Converters

Low-Pass Filter Design

High-Pass Filter Design

Narrow-Band Band-Pass Filter Design

Narrow-Band Band-Reject Filter Design

Problems

OTA FILTERS

Introduction

Single OTA LP Filters with Three Passive Components

Second-Order Low-Pass Filter

Second-Order LP Filter with Four Passive Components

Second-Order Band-Pass Filter

OTA-C Filter

Some Non-Ideal Feature of the OTA

Problems

SWITCHED CAPACITOR FILTERS

Introduction

The Switched Capacitor Resistors

The Switched Capacitor Integrator

Practical Limitations of SC Filters

Problems

Appendix A: Node Voltage Network Analysis

Appendix B: Filter Design Nomograph

Appendix C: First- and Second-Order Factors of Denominator Polynomial

Appendix D: Formulas of Normalized Filters

Appendix E: Element Values for Low-Pass LC Filters

Appendix F: Coefficients of Denominator Polynomial

Bibliography

Subject Categories

BISAC Subject Codes/Headings:
TEC007000
TECHNOLOGY & ENGINEERING / Electrical
TEC008000
TECHNOLOGY & ENGINEERING / Electronics / General
TEC008010
TECHNOLOGY & ENGINEERING / Electronics / Circuits / General