Introduction to Filters

A filter is a circuit capable of passing (or amplifying) certain frequencies while attenuating other frequencies. Thus, a filter can extract important frequencies from signals that also contain undesirable or irrelevant frequencies. The four primary types of filters include the low-pass filter, the high-pass filter, the band-pass filter, and the notch filter (or the band-reject or band-stop filter). For History of Integrated Circuits Click For Pin Configuration of 741 IC Click For Block Diagram of Op-amp Click For Basic Concept of Op-amp Click For Ideal and Practical Characteristics of op-amp Click For Op-Amp as an Inverting Amplifier Click For Op-Amp as n Non-Inverting Amplifier Click For Op-Amp as a Voltage Follower Click