Published:2011/8/12 4:51:00 Author:Felicity | Keyword: 0.1~10Hz Filter | From:SeekIC
The figure shows the circuit diagram of the 0.1~10Hz filter. It’s composed of two parts. Part one is high-pass filter and part two is low-pass filter. The signal the frequency of which is above 0.1Hz can pass the first part and the signal the frequency of which is above 10Hz will be filtered out by the second part. And then the band-pass filtration is complete. The first part is non-inverting amplifier and the cutoff frequency depends on R1C1, as showed in the formula below:
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