An opamp has a parameter called the GBW gain bandwidth product, expressed as a frequency. This is the frequency at which the gain has fallen to 1, If you want to get a gain of 750 for audio frequencies of up to 20KHz, you would need an opamp with a GBW of 15MHz. I don't know what an LM324 is, but I doubt that it is that high.
And, as Harald said, opamps do not shift freqency, but they do shift phase, is that what you are talking about? I,e, the peaks in the output are not at the same place as the peaks in the input?
Edit: Corrected my acronym usage.
Bob
And, as Harald said, opamps do not shift freqency, but they do shift phase, is that what you are talking about? I,e, the peaks in the output are not at the same place as the peaks in the input?
Edit: Corrected my acronym usage.
Bob
Last edited: