Dear Sir,
I have used ADS8556 and faced with some unintentional busy signal without CONVST high, plz refer to below attached fig
.
fist yellow busy and second blue is CONVST, as you can see, after CONVST goes to low, unexpected busy occurred and its level is too small to lead to power down mode I guess,
And our schematic design is as follows,
During operation, after some making switching mechanical contact it goes to power down mode as follows,
As you can see above fig., around a middle of, busy signal goes to unintentional high after CONVST low and it makes partial power down mode and ADC8556 is not working before RESET signal
Could you recommend if you have a experience to solve like this?
Is there any risk on our schematic design above?
Your prompt reply will be highly appreciated.