Don’t you love it when things are consistent? I was reading about input filtering for current sense amplifiers. Compare and contrast figures from two different application notes:
The left one is from ST: How to filter the input of a high-side current sensing. The right one is from Maxim: Performance of Current-Sense Amplifiers With Input Series Resistors.
What’s funnier is that it seems as though the writer of one app note copied the other, since some of the language is more or less identical. But they swapped the “common mode” and “differential” labels for the two circuits…
I’ve more or less convinced myself that the ST one is right, and the copying and confusion was done by Maxim, but electronics is hard enough without this sort of mixup!