The book provides a comprehensive exploration of operational amplifiers (op-amps) and their myriad applications in both linear and non-linear circuits. Beginning with a foundational introduction to op-amps, the text delves into linear circuits, followed by an examination of non-linear circuits. The middle sections cover essential topics such as waveform generators, active filters, and data converters. Subsequent chapters expand on the use of op-amps in more complex analog and digital applications, including voltage regulators, analog multipliers, dividers, and the versatile 555 timer circuits. The final chapters focus on the implementation of logic gates, combinational circuits, and flip-flops using op-amps. The appendices offer practical insights through various tutor kits developed by the author and additional resources, making this book an invaluable resource for both students and professionals in the field of electronics. Features - Comprehensive Coverage -The book covers a wide range of topics from basic to advanced applications of operational amplifiers, making it suitable for both beginners and experienced practitioners.Detailed Practical Guides - Appendices include practical tutor kits for op-amp circuits, analog functions, and digital trainer kits developed by the author, providing hands-on learning opportunities.In-Depth Exploration of Analog and Digital Applications - Extensive chapters on analog multipliers, dividers, waveform generators, and active filters, as well as the use of op-amps in digital logic and combinational circuits, highlight the versatility and essential role of op-amps in various electronic applications.