Thanks very much for your help. Issues 1 and 3 I'm using the EVM board and simply reading using DMM. I think Issue 1 and 3 are related to deviations in reference voltage. I measured Vref at the REFIN TP and it is 4.97V, which likely explains the readings. I tested with both the internal and REF5050 references and I'm continuously getting readings indicating deviations from 5V. For now I adjusted the calibration to use VRef=4.97V. Could this be related to jumper settings on the EVM or my wiring to the test points for SPI (I'll be adding an ISO7141CC Isolator for the SPI interface, but I'm seeing the same Vref deviation when using SM-USB-DIG only). Issue 2 The channel fault status entry seems to be a transient fault that is being latched. For some reason the fault status is not cleared via software reset or writing to the status register 0xB; it only clears after hardware reset. [Yes. the posted data are readback from the registers via the test points (double checked with the SM-USB-DIG and LabView app of the EVM). I checked the Vpos is set to 15V and Vneg to -15V.]
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