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In this case for 4-20mA input use 250Ω termination (1-5V) and for 0-10V 2:1 two-resistor volage divider (0-5V) ...
Then select a low Ron CMOS switches:
**broken link removed**
You will need two microcontroller pins to control these switches - on for each channel ..
All this IC have some resistance in ON positions. From few to 250 ohm.
If I use resistor 124 ohm for current measure and switch R ON is 10 ohm.
I think this will couse errors in my measurments. Also I don´t know what will be with resistance temperature drift. I use 25ppm 0.1% tolerance resisitors 124 ohm for current measurments.
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