aaaaa, why is it nearly 4am...

i have the current sense section of the multimeter project figured out now.

the one i didn't want to work one because more important projects...

i'm going to use low-side current sensing and back-to-back mosfets to switch between the current sense resistors.

Vishay has the SIRA80DP (470u) and Diodes the DMN22M5UFG-7 (2.5m). I'll use two pairs of the first one for the 50A range and one pair for 10A.

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for the other ranges i'm going with the one from Diodes. it's nice and small and doesn't cost much. that way i can nicely add ranges for 1A, 100mA and 10mA.

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