This application-oriented textbook on analog and digital technology provides the foundational knowledge of electronics along with the necessary mathematical principles. Each chapter is consistently enriched with practical examples drawn from the author's extensive industrial experience in plant design and equipment development. The chapters on analog technology primarily cover circuits with operational amplifiers and their applications, supplemented by measurement and control engineering applications from various fields of automation technology. The chapters on digital technology focus particularly on CMOS technology circuits and their numerous applications in industrial practice. Additional elements of the book include an introductory section on PLC programming and a compilation of the most important datasheets for analog and digital components.