I am using AD7699, and have some issues about the EVB.
What the function of R46 of ADC BUFFER, does R53 and C58 configure a low-pass filter.
What is the functio of R26、C38、R28
I'm currently looking into this and get back to you as soon as possible.
R46 is designated to match the impedance on the input pin so that the input bias current multiplied by the difference in impedance doesn’t increase the effective input offset voltage as well as in R26 and R28 in external reference circuit.
Yes,R53 and C58,C38 configure as a low-pass filter.
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