Amplifier Ideas
Walt Jung and Walt Kester
This section of the chapter features miscellaneous op amp applications, within a format of amplifier ideas. They range broadly across the spectrum, illustrating many innovative op amp uses that don’t otherwise fit categories. Some of the concepts have been inspired by publication elsewhere. In such cases, an appropriate original reference is given.
High Efficiency Line Driver
Conventional video line drivers use a series or back-termination resistor, selected to match the transmission line characteristic impedance. Although simple, this scheme is inherently inefficient, as both load and series termination resistors drop the same voltage. This isn’t usually a problem with 1 V p-p video signals ...
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