Operational Amplifiers

This new edition contains state-of-the-art material as well as the essentials. It includes a systematic approach to the design of chopper and auto-zero OpAmps and Instrumentation Amplifiers with input offset voltages of the order of 1uV.

This proven textbook guides readers to a thorough understanding of the theory and design of operational amplifiers (OpAmps). The core of the book presents systematically the design of operational amplifiers, classifying them into a periodic system of nine main overall configurations, ranging from one gain stage up to four or more stages. This division enables circuit designers to recognize quickly, understand, and choose optimal configurations. Characterization of operational amplifiers is given by macro models and error matrices, together with measurement techniques for their parameters. Definitions are given for four types of operational amplifiers depending on the grounding of their input and output ports.

Many famous designs are evaluated in depth, using a carefully structured approach enhanced by numerous figures. In order to reinforce the concepts introduced and facilitate self-evaluation of design skills, the author includes problems with detailed solutions, as well as simulation exercises.

Provides textbook coverage of the theory and design of operational amplifiers; Discusses low-voltage rail-to-rail input and output stages for design of low-power OpAmps; Presents frequency compensation techniques for all nine OpAmp configurations and compensation techniques for amplifiers with high capacitive loads; Includes design of µV-offset operational amplifiers and precision instrumentation amplifiers by applying chopping , auto-zeroing, and dynamic element-matching techniques Provides beyond the rails CM input voltage ranges to OpAmps and InstAmps by the design of capacitive-coupled chopper input stages

Autorentext

Johan H. Huijsing received his M.Sc. in Electrical Engineering from Delft University of Technology, Delft, The Netherlands, in 1969, and his Ph.D. from the same University in 1981 for work on operational amplifiers. Since 1969 he has been a member of the Research and Teaching Staff of the Electronic Instrumentation Laboratory, Department of Electrical Engineering, Delft University of Technology, where he became a full Professor of Electronic Instrumentation since 1990, and professor-emeritus since 2003. He teaches courses on Electrical Measurement Techniques, Electronic Instrumentation, Operational Amplifiers and Analog-to-digital Converters. His field of research is Analog Circuit Design (operational amplifiers, analog multipliers, etc.) and Integrated Smart Sensors. He is author or co-author of some 250 scientific papers, 40 patents and 13 books, and co-editor of 13 books. He is fellow of IEEE. He received the title award of "Simon Stevin Meester" from the Dutch TechnologyFoundation.

Inhalt

Definition of Operational Amplifiers.- Macromodels.- Applications.- Input Stages.- Output Stages.- Overall Design.- Design Examples.- Fully Differential Operational Amplifiers.- Instrumentation Amplifiers and Operational Floating Amplifiers.- Low Noise and Low Offset Operational and Instrumentation Amplifiers.