Hi Joseph, Thanks for the reminder. I'm attaching the picture here. I am scoping all three ADS1118s but I'm only showing the CSB for the first ADC. As you can see, the second ADC is pulled HIGH all the time. Also note that I tried communicating to this board using two separate systems (OpalKelly FPGA and MSP430F5529 ), and both are seeing the same result. And yes, I only see issues for 2 out of the 20 boards. I'm using the DGS package. Unfortunately, I can't share the layout as it is proprietary. I do have other sensors on this board, but when I was scoping the SPI signals, the master was only communicating to just the 3 ADS1118 on board. What else can I probe to figure out why this issue is occurring? I already verified dVIN of 10mV is within the FSR of 1.024V. Should I try playing around with the FSR to see if that makes a difference? I haven't probed VDD yet so I can make sure it's 2V I can also try to capture the scope screen shots while probing on the bad ADS1118 's SPI pins. Probing is quite hard as these ADCs are on a flex board so we have to use a probing machine for this. As mentioned, my last resort is to swap the ADS1118 Thanks
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