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some question about AD9248

Question asked by xzsawq21 on Mar 4, 2017
Latest reply on Aug 6, 2017 by xzsawq21

Hello

I have a 100mVp-p signal and the frequency range is between 100KHz to 10MHz.

the AD9248 has some Reference configuration to select Vref (it could be 0.5V or 1V).

*if I want to sample the signal with AD9248, which voltage reference is better to get best resolution?

 

*I have attached a pic in the below that shows the interface circuit. How can I calculate the input resistance and capacitance of the interface? (please help me in details,in calculating and what's the role of VINCT_A? )

AD9248 interface circuit

 

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