The circuit in Figure 1 filters60-Hz interference from low-frequency,low-level signals. The filterexhibits 40-dB rejection (Q=0.75) anddraws 95 μA max from a single-sided 5Vsupply. Figure 1 This notch ...
Active notch filters have been used in the past for applications like elimination of 50- and 60-Hz hum components. They have proven to be somewhat problematic from the standpoints of center frequency ...
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