Hello Team,
Can someone clarify the doubts I am having about the thread mentioned here.
This thread was regarding whether a single supply op amp (OPA170) with +5V at V+ is properly able to convert a -2.5V at its inverting terminal to a positive voltage (the op amp is configured as an inverting amplifier).
The common mode input voltage of the op amp OPA170 is from (V-)-0.1V to (V+)-2V. That is since the V- pin is connected to GND and V+ is connected to 5V, the input voltage range should be within -0.1V to 3V.
Please correct me if I am wrong.
By applying a -2.5V at the inverting terminal, the CM voltage range is violated and the circuit wont work.
That is since the V- pin is connected to GND and V+ is connected to 5V, the input voltage range should be within -0.1V to 3V.
It means the input voltage at the inverting or non inverting terminals of the op amp must be within -0.1V to 3V.
Please correct me if I am wrong.
