Now_and_Zen
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How to use INA210 to current sense negative rail?
Hi,
I'm building a dual rail psu with +/-12 volt rails, max 2A per rail output. I'd like to build current sensing into both positive and negative rails, I've chosen INA210 zero drift shunt monitor on cost/performance basis.
It is suitable for high side and low side measurement, but I'm not sure how to wire it to get a positive output voltage (need 0-5V) when connected to a sense resistor on the negative rail. Is this possible?
LT6105 works fine in this application but is a larger package and slightly more expensive.
Thanks,
Allan
Hi,
I'm building a dual rail psu with +/-12 volt rails, max 2A per rail output. I'd like to build current sensing into both positive and negative rails, I've chosen INA210 zero drift shunt monitor on cost/performance basis.
It is suitable for high side and low side measurement, but I'm not sure how to wire it to get a positive output voltage (need 0-5V) when connected to a sense resistor on the negative rail. Is this possible?
LT6105 works fine in this application but is a larger package and slightly more expensive.
Thanks,
Allan
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