Hello Dave,
in your latest video "uCurrent... First Manufacture" , you stated to test or to guarantee half of the specified limits.
But you specify a typical error of 0.05% / 0.1% only, not worst case, which would be 0.25% for nA and µA ranges, and 0.3% for mA range, due to error propagation of the 5 different resistors (trimming tolerance errors only) involved in the measurement chain.
The probable error (due to error cancellation) might be 5 * 0.05% / sqrt(5) ~ 0.1%, but still 4 times higher than the 0.025% you claim to test.
So my question is, how you will set the pass/fail parameters in your series production?
And how will you treat units which lie outside limits?
It would also be very interesting, if you later publish details about the setup of the test equipment for the series production run, and the yield of the production run.
regards Frank