I want to use a pressure sensor with Arduino, the output is 4-20mA current loop.
A MCP3424 + precise shunt resistor, is OK to mesure this current ? On the datasheet of the MCP, I see that the impedance is 2.25MegaOhm, after calculation, in my case, this impedance don't disturb my reading. It is the only parameter to see for say "yes, mcp + shunt is ok" ?
Thanks for your help :) (and sorry for my english!).