Hi!
I partly understand how inverting op amp circuits work. There are some details I'm unsure of though. Take a look at this circuit picture and maybe you can explain.
This op amp is powered by a single sided power supply of 3.3V. I know that since the non-inverting op amp pin is at ground then the inverting pin also stays at 0V. I understand what happens when the input is 0 to 10V, the output should be 0 to -3.3V, maybe a little off of that depending on the rail-to-rail specs. But my main concern is what happens during the rest of my large input range? The negative input goes all the way down to -30V? The highest input voltage of +30V? Will the op amp get damaged? What will the output be? The output will eventually go into an ADC pin of a microcontroller. The pin can only accept 0 to 3.3V.
I know you can voltage divide the input down and convert it to positive only, but these questions above are more theoretical.
Thanks for the help!
I partly understand how inverting op amp circuits work. There are some details I'm unsure of though. Take a look at this circuit picture and maybe you can explain.
This op amp is powered by a single sided power supply of 3.3V. I know that since the non-inverting op amp pin is at ground then the inverting pin also stays at 0V. I understand what happens when the input is 0 to 10V, the output should be 0 to -3.3V, maybe a little off of that depending on the rail-to-rail specs. But my main concern is what happens during the rest of my large input range? The negative input goes all the way down to -30V? The highest input voltage of +30V? Will the op amp get damaged? What will the output be? The output will eventually go into an ADC pin of a microcontroller. The pin can only accept 0 to 3.3V.
I know you can voltage divide the input down and convert it to positive only, but these questions above are more theoretical.
Thanks for the help!