This book is intended for engineers in industry working in the area of analog circuit design, as well as for advanced and graduate electrical engineering students. The book serves as a text for graduate level courses on analog integrated circuits for signal processing. Certain parts of the book can also be used to supplement existing courses in electrical engineering curricula of universities on related topics, for instance courses on filter design, nonlinear circuits, analysis and design of sampled-data systems. The book may also be useful as training and quick-reference material for practising engineers.