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Request for the High Pass filter & Low Noise Amplifier recommendation

Hello. I'm graduate school student of Seoul National University in South Korea.

We are trying to convert analog signal to digital using ADC.

Before this ADC we need High Pass Filter & Low Noise Amplifier.

The signal has 21.6kHz frequency(and harmonics-43.2kHz & 64.8kHz).

Can you recommend me some products?

Thank you!