mendiola
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Can I move the capacitor that is between the opamp negative input and the opamp output to the feedback resistor to calculate the low pass filter cut off frequency?
In all schematics I have seen where there is a buffer after an opamp, the low pass filter is formed by a capacitor between the opamp negative input and the op amp output, but is hard to calculate del cutoff frequency with that configuration.
Can I place that capacitor parallel to the feedback resistor to calculate and create a low pass filter?
Why doesn't anybody use a capacitor in parallel with the feeback resistor when there is a buffer after an op amp?
Thank you.
Alfredo Mendiola Loyola
Lima, Peru
In all schematics I have seen where there is a buffer after an opamp, the low pass filter is formed by a capacitor between the opamp negative input and the op amp output, but is hard to calculate del cutoff frequency with that configuration.
Can I place that capacitor parallel to the feedback resistor to calculate and create a low pass filter?
Why doesn't anybody use a capacitor in parallel with the feeback resistor when there is a buffer after an op amp?
Thank you.
Alfredo Mendiola Loyola
Lima, Peru
