I am thinking of using a singe source 9V, and I plan to add DC offset to two sine wave input; one sine wave input goes to positive and the other sine wave goes to negative input of an opamp. The idea is to add DC offset to both the sine wave input and the output will be a DC coupled differential sine wave. If I don't add DC offset to the input sine wave, then the output will be a half wave as the opamp has a single source power.
Would there be any issue if I add DC offset to both the sine wave input?
I hope to hear your response. Any idea will be helpful.