STM32H723 ADC Specification

[Sarmad]

I am trying to measure DC output of an RF detector (AD8363) using STM32H723's ADC. The Signal that is to be measured has about 80 mV - 90 mV of high frequency noise embedded on it. Due to inaccuracies in the measurement I am probing the measurement circuitry and therefore would like to know:

1. The 5 pF capacitance of ADC is total capacitance of the 12 or 16 capacitors inside ADC or just that of one capacitor?
2. What is the resistance of the ADC's sample and hold switch?
3. Is there any model of ADC Circuitry, that includes parasitic as well?
4. What is the tracking bandwidth of the ADC?

[TDK]

These are listed in the datasheet.

 

RAIN and CADC form a low-pass filter as described:

 

[Sarmad]

Thanks for sharing that. I was going through AN2834, where a little detailed internal circuit of ADC is shared:

that lead me to query the datasheet specs. So is the CADC equivalent of all these capacitors or just the C. And what about tracking bandwidth?

[MasterT]

Capacitance 5 pF total.

Bandwidth is defined by first order LPF:  Fbw = 1/ 2 x PI() x Rin x Cin