Hi everyone, I am trying to use AD7173-8 in an application where 3 channels are to be used and I am a little confused about that.
What I want to do is to have a consistent way of reading all enabled channels of the ADC. The datasheet says about the DOUT/~RDY pin that goes low to indicate that a conversion has been completed. Up to now, when hooking a 'scope to check logic levels on the SPI lines, I cannot see DOUT/~RDY going low right after an SPI transaction; it remains high and then it goes Hi-Z (green trace is ~CS, yellow trace is DOUT/~RDY):
Has anyone a suggestion to move forward? What exactly should I have to do to switch channels fast enough without losing data?