IC Electronic Filters

IC electronic filters are frequency-selective circuits that consist of devices such resistors, capacitors, inductors, transistors, or operational amplifiers coupled with reactive components. IC electronic filters include active filters, passive filters crystal filters, digital filters, passive filters, SAW filters and others. Active filters are frequency-selective circuits that consist of active devices such as transistors, or operational amplifiers coupled with reactive components. Crystal filters are made of monolithic crystals such as synthetically-manufactured quartz, and use the piezoelectric effect to transmit signals from one set of electrodes to another. Digital filters are used with digital processors that perform numerical calculations on the sampled input signal in order to produce the required filtering function. Passive filters consist of passive electronic components such as resistors and capacitors, and do not produce any amplification of the input signal.  SAW filters are IC electronic filters that are designed and manufactured using surface acoustic wave (SAW) technology.

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