Hi,
I am considering using the INA236 for several DC-DC converters in a power tree.
According to the datasheet the ADC can be set to either +-81,92 mV or +-20,48mV.
So my idea was to use a resistor that can be used for between both ranges. Lets say, when the system is at low power( which is 80% of the time) I use the ADC range +-20,48mV to achieve higher resolution and lower power desipation on the Shunt resistor.
When it is close or out of bounds (in scale 20,48mv)I switch to the +-81,92 mV scale.
.
Is this advisevable ?Is there any downside by using the +-20,48mV Scale? Well besides being more prone to noise.
Thanks,
Pedro
MAny Thanks