The manual is intended for students of technical universities. Meets the training programs for bachelors, engineers and masters of the direction "Electronics" specialty "Electronic systems" and "Physical and biomedical electronics" in accordance with the requirements of the state standard of Ukraine. The manual provides the basics of circuitry, the principles of operation and calculations of analog devices in electronic systems based on semiconductor devices and integrated operational amplifiers. The sections of the manual provide questions for monitoring and consolidating knowledge.