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EPOT Applications: Gain Adjustment in Op-Amp Circuits


关键词: EPOT Applications: Gain Adjustment in Op-Amp Circuits 


Variable gain amplifiers often use a mechanical potentiometer to set the gain. An example is a volume control dial. However, when the analog signal path is digitally controlled, a digital potentiometer might be used to control gain. This article discusses the use of the digital potentiometer to form digitally controlled gain or filter blocks.



 EPOT Applications：Gain Adjustment in Op-Amp Circuits.pdf