Tool/software:
We have been using the PGA411 for a motor control application for a while now. I know the part has been discontinued but we are still using it for the time being until we manage to develop the replacement. I had to set this question as a different part number (the micro that we are using) because the other part wouldn't come up in the list.
My question is this. The PGA411 compensates for the lag between the excitation phase and the sin/cos, but there will be an additional lag produced by the time it takes the PGA411 to do all the sampling, calculations and update of the outputs. Is there a good way to estimate all that lag? The datasheet contains some settling times with respect to a step input. However, this is not really a value I can use in software to do the compensation because it is not realistic of the normal running use. Also this time is in the miliseconds range, which is huge. I believe the number I'm looking for should be in the micro seconds range.
