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  1. Thanks for clearing this up. So Cas is the...

    Thanks for clearing this up.
    So Cas is the external circuit capacitance and is not part of the adc circuit?

    For some reason I didnít see Cadin, would have been much easier.

    I guess I will have...
  2. Iíve done exactly that. Iíve pretty much sweeped...

    Iíve done exactly that. Iíve pretty much sweeped the filter from 2k to 500k. What improves things drastically is filtering in software using floats and doubles. RC filter seems a waste of board...
  3. Iíve already tested an RC filter. Iím not sure if...

    Iíve already tested an RC filter. Iím not sure if itís making any difference or if itís worse. I see no point to be honest.

    Software filtering makes a huge impact indeed.
  4. Would that antialiasing filter be below half the...

    Would that antialiasing filter be below half the frequency of the sample rate for each sensor or the sample rate of each ADC? Half of 50kHz or 250kHz?

    Or would that also include the averaging for...
  5. I'll take a look at it although I'm not sure it's...

    I'll take a look at it although I'm not sure it's going to apply.

    What I really want to find out is the acquisition time of the teensy adc (how long it charges the internal capacitor) and the size...
  6. You are talking about the exact thing that the...

    You are talking about the exact thing that the youtube link above shows. They show how to calculate these things. Only problem is knowing what values to put in from the op amp and adc datasheets....
  7. Of course, I oversample and use a software filter...

    Of course, I oversample and use a software filter but it seems that averaging on the ADC settings gives better results compared to oversampling and filtering in software. This seems to me that there...
  8. I'm not sure if you or I am misunderstanding....

    I'm not sure if you or I am misunderstanding. Sampling multiple times is what the averaging setting in the ADC does, does it not? You can choose 2, 4, 8 or 16 averages I think. It is the most...
  9. Maybe I'm missing something here but say I'm...

    Maybe I'm missing something here but say I'm sampling 10 sensors at 50kHz each at 12bit. Every sample is averaged 4 times so it's actually 200kHz per sensor. 10 sensors with two adc's means each ADC...
  10. Suitable op amp for driving the teensy4 ADC

    Hello!

    I just saw this document: https://www.eetimes.com/using-op-amps-with-data-converters-part-1/#

    Part 2: https://www.eetimes.com/using-op-amps-with-data-converters-part-2/

    Part 3:...
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