Hi everyone,
I have a question with regards to the output of an SK bandpass filter I'm building.
I have built the bandpass filter by cascading a low-pass filter and high-pass filter, both of which are of the SK-type, using the op-amp, LM358. This is shown in the schematic I have drawn below, together with the values of the capacitors and resistors:
https://ibb.co/fWSR2b
However, the output waveform is weird as seen below after feeding in a sine wave of amplitude 4.3V from a signal generator. I suspect that it may be because of the high capacitance value but I am not very sure if this is the case. May I ask if anyone can advise me on how to improve the shape of the output waveform?
https://ibb.co/bJbx8G
Thank you very much.
I have a question with regards to the output of an SK bandpass filter I'm building.
I have built the bandpass filter by cascading a low-pass filter and high-pass filter, both of which are of the SK-type, using the op-amp, LM358. This is shown in the schematic I have drawn below, together with the values of the capacitors and resistors:
https://ibb.co/fWSR2b
However, the output waveform is weird as seen below after feeding in a sine wave of amplitude 4.3V from a signal generator. I suspect that it may be because of the high capacitance value but I am not very sure if this is the case. May I ask if anyone can advise me on how to improve the shape of the output waveform?
https://ibb.co/bJbx8G
Thank you very much.