Название: Differential Amplifiers: Their Analysis and Their Applications in Transistor d-c Amplifiers
Автор: R.D. Middlebrook
Издательство: Wiley
Год: 1963
Формат: PDF
Страниц: 123
Для сайта: litgu.ru
Размер: 10.52 MB
Язык: English
Differential amplifiers, also known as difference amplifiers, cathode- or emitter-coupled amplifiers, and push-pull amplifiers, are frequently employed in several branches of instrumentation. Differential amplifiers possess in general a three-terminal input and a three-terminal output, and it is usual to describe their performance with respect to common-mode (CM) and differential-mode (DM) signals. Much of the early work on differential amplifiers was for application to biological instrumentation, in which it was necessary to amplify very small DM signals to the exclusion of large interference CM signals. These instruments used vacuum tubes exclusively. Later, the availability of improved transistors led to the development of high-performance solid-state d-c differential amplifiers for use in telemetry and other signal-conditioning systems. Because of the almost complete isolation of the histories of vacuum-tube and transistor differential amplifiers, there is a need to integrate the theories of the two classes and to apply the principles learned over the years with tube amplifiers to modem high-performance solid-state circuits.