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Edited just the English, left the "band pass filter" alone.
Davide Andrea
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Why isn't the frequency response of this band pass filter circuit the same as the band pass filter with an ideal op amp?

I'm trying to develop a band pass filter with center frequency 10 kHz:

enter image description here

enter image description here

The frequency response doesn't look good, but when i replace the circuit above with an ideal op-amp, I have the correct response:

enter image description here

enter image description here

Why doesn't the filter circuit with the real op-amp work as intended?

Scipio
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