Sampling Multiple Channels with the ADC at The Same Time

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I did some more research. That statement does not mean that there are 8 ADCS. There are 8 input pins that are connected via a mux which then goes into a single ADC. I am just going to write some code to ping between two channels and see how that works.

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ok with such slow ADC it is possible to mux any number of inputs so one adc is time shared between them like a queue.

As such what matters to you should be how read the relevant channel in the queue. This info should be available to you from vendor.