Other Parts Discussed in Thread: TIDA-00313
I want to use the ina226 chip to measure the current and voltage of a voltage source that varies from -1.5V to -3V.
The digital part (I2C microcontroller) is supplied with a voltage of 3.3V.
I have seen the different discussions in the forum but I have not been able to find a solution to my problem. You can see the circuit below.
My first question is, can I use this chip in this case? I have seen the TIDA-00313 example, the problem in my case is that the voltage to be measured can be -1.5v, that is, that voltage cannot be used as a power supply VS for ina226.
Do you have any idea how I can do this measurement?