Integrated Circuits

I.     Course Prefix/Number: ELT 223

       Course Name: Integrated Circuits

       Credits: 3 (2 lecture; 2 lab)

II.    Prerequisite

ELT 106 or concurrent enrollment in ELT 106.

III.   Course (Catalog) Description

Course covers integrated circuits and their applications. Content includes operational amplifiers and digital integrated circuits, both from monolithic and hybrid standpoints, application of integrated circuits to current industry situations.

IV.   Learning Objectives

Student will learn to:

  1. Recognize and define the function of operational amplifiers and timer circuits and their applications
  2. Use mathematical methods to model and predict the behavior of operational amplifier and timer circuits.
  3. Analyze operational amplifier and timer circuits using computer simulation software.
  4. Communicate effectively in a technical and non-technical environment
  5. Compile and prepare laboratory reports.
  6. Analyze and troubleshoot operational amplifier and timer circuit problems.

V.    Academic Integrity and Student Conduct

Students and employees at Oakton Community College are required to demonstrate academic integrity and follow Oakton's Code of Academic Conduct. This code prohibits:

• cheating,
• plagiarism (turning in work not written by you, or lacking proper citation),
• falsification and fabrication (lying or distorting the truth),
• helping others to cheat,
• unauthorized changes on official documents,
• pretending to be someone else or having someone else pretend to be you,
• making or accepting bribes, special favors, or threats, and
• any other behavior that violates academic integrity.

There are serious consequences to violations of the academic integrity policy. Oakton's policies and procedures provide students a fair hearing if a complaint is made against you. If you are found to have violated the policy, the minimum penalty is failure on the assignment and, a disciplinary record will be established and kept on file in the office of the Vice President for Student Affairs for a period of 3 years.

Please review the Code of Academic Conduct and the Code of Student Conduct, both located online at

VI.   Sequence of Topics

  1. Operational amplifier circuit design basics (voltage and current types).
  2. Basic amplifier applications, inverting and non-inverting.
  3. Basic comparator applications, Hi, Low, and Window types.
  4. Opamp circuits used as oscillators, pulse type and sine wave type.
  5. Motor control applications using pulse width modulation.
  6. Opamp circuits used as active filters, low pass, hi pass, and band pass.
  7. Voltage regulators
  8. Communication circuits

VII.  Methods of Instruction

The course will include lectures, lab and problem sessions.  The lectures will follow the textbook along with problem solutions and questions and answer periods.  The lab will include the building and testing of circuits using operational amplifiers and other integrated circuits.


Course may be taught as face-to-face, hybrid or online course.

VIII. Course Practices Required

  1. Attendance of lectures and lab sessions.
  2. Written examinations
  3. Homework assignments
  4. Special projects as part of the lab sessions.

IX.   Instructional Materials

Note: Current textbook information for each course and section is available on Oakton's Schedule of Classes.

X.    Methods of Evaluating Student Progress

Four to five exams 70%
Lab work 20%
Homework 10%
A:  90 - 100
B: 80 - 89
C: 70 - 79
D: 60 - 69
F: Below 60

XI.   Other Course Information

Attendance and participation is recommended.  No late assignment will be accepted.  The homework is due on the following session.  A make-up test may be given on the following session if the student had a good excuse (working out of town, sick, etc.)  If the student missed the make-up test too, then he will be awarded the lowest grade of the class test, or his own lowest grade of the semester tests, whichever is lower.

If you have a documented learning, psychological, or physical disability you may be entitled to reasonable academic accommodations or services. To request accommodations or services, contact the Access and Disability Resource Center at the Des Plaines or Skokie campus. All students are expected to fulfill essential course requirements. The College will not waive any essential skill or requirement of a course or degree program.

Oakton Community College is committed to maintaining a campus environment emphasizing the dignity and worth of all members of the community, and complies with all federal and state Title IX requirements.

Resources and support for
  • pregnancy-related and parenting accommodations; and
  • victims of sexual misconduct
can be found at

Resources and support for LGBTQ+ students can be found at

Electronic video and/or audio recording is not permitted during class unless the student obtains written permission from the instructor. In cases where recordings are allowed, such content is restricted to personal use only. Any distribution of such recordings is strictly prohibited. Personal use is defined as use by an individual student for the purpose of studying or completing course assignments.

For students who have been approved for audio and/or video recording of lectures and other classroom activities as a reasonable accommodation by Oakton’s Access Disabilities Resource Center (ADRC), applicable federal law requires instructors to permit those recordings. Such recordings are also limited to personal use. Any distribution of such recordings is strictly prohibited.

Violation of this policy will result in disciplinary action through the Code of Student Conduct.