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Hello,
Currently, I am searching for an ADC which can read a sine wave signal with a maximum frequency of 10 MHz. I know that I have to choose an ADC of at least 20 MHz due to Nyquist theorem. However, Some have said that an ADC can work to a certain minimum frequency without degrading of the ADC performance. My signal of interest is between 20 KHz - 10 MHz. Is it recommended to use ADS4142 or ADS4145 or another one? The resolution could be 12- to 16-bits.
Best regards,
Kwoki
Kwoki,
Without knowing much else about your application other than what you mentioned, the ADS4142 or ADS4145 would be a good choice. Another option is the ADC3221 device or one of the others in this family of parts. This is a newer part than the ADS4142 family.
Regards,
Jim