Hi,
I have a problem with the function block diagram of the ADS1298.
The signals INxP INxN run through the EMI filter into the MUX. And then to the PGAs. Where the difference is build and passed to the ADC.
My problem is the block diagram shows that two signals are going from the PGA to the ADC. That I do not understand. The ADC has only one input. Which of the signals is passed to the ADC? Only the difference (lead)?
Is there no Instrumentation Amplifier used to prepare the Signals for the ADC?
I would like to understand how the ADS1298 works exactly.
I hope someone can explain this to me. Thanks in advance.