Chapter 7. Advanced Amplifier Topics and Design Examples
Abstract
Note on cascaded gain stages and the effects of loading
Worst-case open-circuit time constants calculations
High-frequency output and input impedance of emitter follower buffers
Bootstrapping
Pole splitting
Chapter 7 problems
Further reading
Chapter 8. BJT High-Gain Amplifiers and Current Mirrors
Abstract
The need to augment the hybrid-pi model
Base-width modulation and the extended hybrid-pi model
Calculating small-signal parameters using a transistor datasheet
Building blocks
Chapter 8 problems
Further reading
Chapter 9. Introduction to Field-Effect Transistors (FETs) and Amplifiers
Abstract
Early history of field-effect transistors
Qualitative discussion of the basic signal MOSFET
Figuring out the V-I curve of a MOS device
MOS small-signal model (low frequency)
MOS small-signal model (high frequency)
Basic MOS amplifiers
Basic JFETs
Chapter 9 problems
Further reading
Chapter 10. Large-Signal Switching of Bipolar Transistors and MOSFETs
Abstract
Introduction
Development of the large-signal switching model for BJTs
BJT reverse-active region
BJT saturation
BJT base–emitter and base–collector depletion capacitances
Relationship between the charge control and the hybrid–pi parameters in bipolar transistors
Finding depletion capacitances from the datasheet
Manufacturers' testing of BJTs
Charge control model examples
Large-signal switching of MOSFETs
Chapter 10 problems
Further reading
2N2222 NPN transistor datasheet excerpts
Si4410DY N-channel MOSFET datasheet excerpts
Chapter 11. Review of Feedback Systems
Abstract
Introduction and some early history of feedback control
Invention of the negative feedback amplifier
Control system basics
Loop transmission and disturbance rejection
Approximate closed-loop gain of a feedback loop
Pole locations, damping and relative stability
The effects of feedback on relative stability
Routh stability criterion (a.k.a. the “Routh test”)
The phase margin and gain margin tests
Relationship between damping ratio and phase margin
Phase margin, step response, and frequency response
Loop compensation techniques—lead and lag networks
Parenthetical comment on some interesting feedback loops
Chapter 11 problems
Further reading
Chapter 12. Basic Operational Amplifier Topologies and a Case Study
Abstract
Basic operational amplifier operation
A brief review of LM741 op-amp schematic
Some real-world limitations of op-amps
Noise
Chapter 12 Problems
Further reading
Chapter 13. Review of Current Feedback Operational Amplifiers
Abstract
Conventional voltage-feedback op-amp and the constant “gain–bandwidth product” paradigm
Slew-rate limitations in a conventional voltage-feedback op-amp
The current-feedback op-amp
Absence of slew-rate limit in current-feedback op-amps
Manufacturer's datasheet information for a current-feedback amplifier
A more detailed model and some comments on current-feedback op-amp limitations
Chapter 13 problems
Further reading
Appendix: LM6181 current-feedback op-amp
Chapter 14. Analog Low-Pass Filters
Abstract
Introduction
Review of LPF basics
Butterworth filter
Comparison of Butterworth, Chebyshev, and Bessel filters
Filter implementation
Active LPF implementations
Some comments on high-pass and band-pass filters
Chapter 14 problems
Further reading
Chapter 15. Passive Components, Prototyping Issues, and a Case Study in PC Board Layout
Abstract
Resistors
Intuitive Analog Circuit Design outlines ways of thinking about analog circuits and systems that let you develop a feel for what a good, working analog circuit design should be. This book reflects author Marc Thompson's 30 years of experience designing analog and power electronics circuits and teaching graduate-level analog circuit design, and is the ideal reference for anyone who needs a straightforward introduction to the subject.
In this book, Dr. Thompson describes intuitive and "back-of-the-envelope" techniques for designing and analyzing analog circuits, including transistor amplifiers (CMOS, JFET, and bipolar), transistor switching, noise in analog circuits, thermal circuit design, magnetic circuit design, and control systems. The application of some simple rules of thumb and design techniques is the first step in developing an intuitive understanding of the behavior of complex electrical systems.
Introducing analog circuit design with a minimum of mathematics, this book uses numerous real-world examples to help you make the transition to analog design. The second edition is an ideal introductory text for anyone new to the area of analog circuit design.