Hi,
From dac37j84.pdf page 8, 6.5 DC Electrical Characteristics table I can see that the DAC gain error is 2% FSR and the gain mismatch error is 2% FSR.
Question1:
What is gain mismatch error? Is this gain mismatch between two separate DAC channels (knowing we have 4ch in the package) or maybe some other mismatch reference. I could not find a good definition in the document.
Question2:
How to understand the gain error in the context of the differential output of the device? Does it implies that the zero reference for the gain calculation is in the middle of the range (not at the zero code as it is typically for this parameter)? If that is the case then would that mean that at zero code we will have the maximum of the gain error or just 1/2 of the gain error?
Thanks,
Des