Can MCS1806 measure AC (50Hz&60Hz) 10mA current? How to calculate the parameter ‘Noise’? Is it related to frequency bandwidth?
Hello, welcome to the MPS Forums.
The MCS1806 is capable of measuring AC and DC currents. As for measuring such a low current, you will probably want to choose the +/- 5A trim if the 264 mV/A sensitivity is ok for the application.
As for noise, it is certainly related to bandwidth. Here are the following specs stated on the datasheet and some information regarding this from the datasheet:
The noise vs. bandwidth tradeoff can be adjusted through capacitor Cf between FILT and GND.
(where CFI = 1nF)
Hope this provided some insight.