RC Filter for low and very low frequency applications

摘要

An RC filter for low or very low frequency applications, comprising:a resistor (R) between the filter input and output; andan amplifier connected after the resistor and having an output fed back to the input through a capacitor (C). This simple design allows the known Miller Effect to be utilized to produce a filter having a high time constant while employing small-size components which occupy little space in integrated circuits.