Portland Community College | Portland, Oregon

Course Number:
EET 222
Course Title:
Operational Amplifier Circuits
Credit Hours:
Lecture Hours:
Lecture/Lab Hours:
Lab Hours:
Special Fee:

Course Description

Characteristics and applications of operational amplifiers (op-amps). Design and analysis of op-amp amplifiers, comparators, voltage and current regulators, summers, integrators, and differentiators. Frequency response of op-amp circuits. Applications of the op-amp in power supplies and control systems. A 3-hour per week laboratory includes project design, evaluation, and documentation. Use of computer tools. Prerequisites: EET 221 Audit available.

Addendum to Course Description

The focus of this term is on operational amplifier characteristics and applications.  The laboratory component includes applications such as waveform generator circuits, filters, and instrumentation amplifiers.

Intended Outcomes for the course

1. Apply op-amps fundamentals in design and analysis of op-amps applications.

2. Apply op-amps fundamentals and computer tools in project design, evaluation, and analysis.

Outcome Assessment Strategies

Assessment methods are to be determined by the instructor.  Typically, in class exams and quizzes, and homework assignments will be used.  Lab work is typically assessed by a lab notebook, formal lab reports, performance of experiments, and possibly a lab exam.

Course Content (Themes, Concepts, Issues and Skills)

1.      Discrete transistor differential amplifier biasing and amplification. 

2.      Ideal operational amplifier, inverting and non-inverting amplifier configurations.  Biasing and offset currents, and offset voltages. Feedback theory, and negative feedback in op-amp circuits. 

3.      Frequency response, gain-bandwidth product, slew rate, compensation and stability.  Op-amp specifications. 

4.      Applications include: voltage summation, subtraction, scaling, voltage and current sources, waveshaping, integration, and differentiation.

5.   Op-amp oscillators and the Barkhausen criterion.  Oscillator types include: RC-phase shift, Wien bridge, Colpitts, and Hartley.         

6.   Active filters concepts and design, including low pass, high pass, and bandpass types. 

7.   Voltage comparators, Schmitt triggers, and relaxation oscillators, clippers, clampers, rectifiers, and other applications as time permits.