2-8 Cascaded First-Order Filters

Dr. Allen RobinsonAcademic ProfessionalSchool of Electrical and Computer Engineering

School of Electrical and Computer Engineering

Introduction to Electronics

An introduction to electronic components and a study of circuits containing such devices.

Dr. Allen RobinsonAcademic ProfessionalSchool of Electrical and Computer Engineering

School of Electrical and Computer Engineering

Cascaded First-Order Filters

Introduce cascaded first-order op-amp filters

Introduced op-amp first-order highpass filters

Previous Lesson

3

Introduce cascaded filters Introduce bandpass filter characteristics Introduce second-order transfer functions

Lesson Objectives

4

First-Order LPF and HPF

5

Cascaded Filter

Input OutputFirst-OrderLPF

Input OutputFirst-OrderHPF

6

Cascaded Filter

7

Bandpass Filter Characteristics

8

Transfer Function

Second-Order Filter Standard Form:

9

Cascaded Bandpass Filters

10

Is it possible to form a cascaded band-reject filter?

Question

11

Cascaded Filters Bandpass Transfer Functions

Summary

12

Second-Order Transfer Functions

Next Lesson

13