Slopes and Levels

This book features an extensive index and all Mathcad worksheets.

Vinyl is back, tubes/valves are back, on the high-end field SMD-free analog amplification surpasses digitalized chains, and top microphone manufacturers still set on good old op-amps or on fully discrete BJT, FET, and/or tube-driven amplifiers. There is only one problem that is not satisfyingly well solved by the manufacturers: It is the noise production of the active components and the useful reflection in simulation tools, in tables or graphs of the datasheets/data books.

Nowadays, mostly surrounded by many digital helping tools, it makes sense using themalso by analog aficionados. It saves cost and time simulating first before spending money. Presented in this book the software tool LTSpice which is the free software solution from Linear Technology (today Analog Devices) that could also be used by full analog lovers to simulate the noise production of their amplifier design. All we need is the right creation approach to develop simulation models for the active components. Inter alia this is already done for tubes and BJTs in the 2nd editions of my How to Gain Gain and Balanced Phono-Amps books. For op-amps, the missing approaches are presented in the book on hand.

It cannot be denied that mathematical software like Mathcad is extremely helpful to find the right equations for graphically presented noise curves which we can find in the literature. Nevertheless, it also works well with other types of math software to fulfill the parameter needs of the here presented modeling approaches for the input referred voltage and current noise ofnot onlyexcellent sounding vintage op-amps, applicable in the audio range from 1 Hz to 100 kHz.

Tackles the problem of noise production of the active components Offers the software tool LTSpice as the noise simulation software for amplifier design Features an extensive index all Mathcad worksheets

Auteur

Burkhard Vogel achieved the degree Diplom-Ingenieur (Telecommunications) from Darmstadt University of Technology, Germany, in 1973. He then decided to follow a general management career path in the high-tech and IT industry in Germany, Switzerland, and Austria. His passion for music and music systems made Mr. Vogel an expert in Phono-Amps and Vinyl Technology. In addition to "Slopes and Levels," he wrote the RIAA-phono-amp designer guides "The Sound of Silence" and "Balanced Phono-Amps," rounded up by the triode reference "How to Gain Gain".

Texte du rabat

This book features an extensive index and all Mathcad worksheets. Vinyl is back, tubes/valves are back, on the high-end field SMD-free analog amplification surpasses digitalized chains, and top microphone manufacturers still set on good old op-amps or on fully discrete BJT, FET, and/or tube-driven amplifiers. There is only one problem that is not satisfyingly well solved by the manufacturers: It is the noise production of the active components and the useful reflection in simulation tools, in tables or graphs of the datasheets/data books. Nowadays, mostly surrounded by many digital helping tools, it makes sense using them also by analog aficionados. It saves cost and time simulating first before spending money. Presented in this book the software tool LTSpice which is the free software solution from Linear Technology (today Analog Devices) that could also be used by full analog lovers to simulate the noise production of their amplifier design. All we need is the right creation approach to develop simulation models for the active components. Inter alia this is already done for tubes and BJTs in the 2nd editions of my How to Gain Gain and Balanced Phono-Amps books. For op-amps, the missing approaches are presented in the book on hand. It cannot be denied that mathematical software like Mathcad is extremely helpful to find the right equations for graphically presented noise curves which we can find in the literature. Nevertheless, it also works well with other types of math software to fulfill the parameter needs of the here presented modeling approaches for the input referred voltage and current noise of not only excellent sounding vintage op-amps, applicable in the audio range from 1 Hz to 100 kHz.

Résumé
"It is definitely a valuable resource for anyone interested in accurately simulating the noise of op-amp circuits." (Marcel van de Gevel, audioXpress, audioxpress.com, Vol. 54 (3), March, 2023)

Contenu
Intro.- Basics of OPA Noise and Gain.- Mathcad Worksheets for Chapter 2.- Non-Inverting OPA Gain Stages.- Mathcad Worksheet for Chapter 4.- Inverting OPA Gain Stages.- Mathcad Worksheets for Chapter 6.- Phono-Amp with OPAs.- Mathcad Worksheets for Chapter 8.- The Correlation Matter.- Mathcad Worksheets for Chapter 10.- OPA Noise Modelling.- Mathcad Worksheets for Chapter 12.- Noise Traces for the Simulation Model of OPAs Created with the Example OPA NE5534A.- Mathcad Worksheets for Chapter 14.- Example OPA1611.- Mathcad Worksheets for Chapter 16.- Example NE5532A.- Mathcad Worksheets for Chapter 18.- Example OPA134.- Mathcad Worksheets for Chapter 20.- Example TL071.- Mathcad Worksheets for Chapter 22.- Example SSM-2017.- Mathcad Worksheets for Chapter 24.- Summary.