Notch filter

Notch filter

The notch filter is a built-in feature of the Analog-to-Digital Converter (ADC) that attenuates noise at a specified frequency. The specified frequency could be on a line or set to another value. The notch filter reduces the amplitude of the signal with minimal signal distortion.
Choose a notch filter based on what noise frequencies are present in the device operating environment and any sampling requirements that are needed for control. For example, if the notch filter setting is 60 Hz, 60 Hz AC line noise and its overtones are attenuated.
For more details, see the
5000 Series Analog I/O Modules User Manual,
publication number
5000-UM005.
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