sheldon
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Aaron,
Not an expert, but my understanding is that active-RC filters have better linearity and dynamic range: IIP3, P1DB, than OTA-C filters. Even when using techniques to extend linearity such as doublets, etc. it is difficult for an OTA-C filter to match the linearity of a closed-loop op-amp. Not sure about noise, my guess is that the noise of an active-RC is higher since their are more components to contribute noise in the circuit.
Not sure what the comment about reliability means, however, active-RC filters also have significant limitations. Compared to OTA-C filters, they require additional circuitry for trimming and can have significantly larger area.
Best Regards,
Sheldon
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