Filter circuits supported by AktivFilter 3.4
The following filter circuits can be designed by AktivFilter 3.4. The pictures show only one stage of a filter, because any stage of a filter has the same circuit (but different component values).
- Lowpass with multiple feedback, order 1..30:
- Lowpass with Sallen-Key-circuit, gain 0 dB, order 1..30:
- Lowpass with Sallen-Key-circuit, gain > 0 dB, order 1..30:
- 3rd order Sallen-Key lowpass with one opamp, gain 0 dB:
- 3rd order Sallen-Key lowpass with one opamp, gain > 0 dB:
- Highpass with multiple feedback, order 1..30:
- Highpass with Sallen-Key-circuit, gain 0 dB, order 1..30:
- Highpass with Sallen-Key-circuit, gain > 0 dB, order 1..30:
- 3rd order Sallen-Key highpass with one opamp, gain 0 dB:
- 3rd order Sallen-Key highpass with one opamp, gain > 0 dB:
- Bandpass with multiple feedback, order 2..30:
- Bandreject with twin-T, order 2:
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