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Page 3 of the datasheet for this part indicates under the pin assignments call out under Note A that "If a PowerPAD is used, it is electrically
isolated from the active circuitry". Electrically isolated implies to me that PowerPAD does not serve as a ground current return path for the chip/die. In my application I'm using the DGN package and for this package there are no pins assigned to ground. So my question is if the PowerPAD does not serve as the ground return path since as indicated it is electrically isolated how can the THS-3201 operate without an assigned ground pin? I'm guessing that the ground pad is not electrically isolated as indicated, but I wanted confirmation this as I try to troubleshoot a design using this part.