I have two similar questions regarding the PGA of the ADS1115.
Say I have the PGA set to 2, so the max voltage read is 2.048V. If I apply 3V to AIN0, I assume it will give me the max voltage reading. But will it fry my board?
Also, say I have 4V connected to AIN0 and 3.8V connected to AIN1. Say I wish to take a differential measurement, the answer being 0.2V. To get a precise measurement, should I set the PGA to 1 = 4.096V max, or to 16 = 0.256V max? I do not know if setting it to 16 will give me any result because the individual measurements are much higher than 0.256V, or if it will fry my board.
Thank you very much!