Trying to figure out the formula for this op-amp circuit
I been trying to figure out the formula for this circuit but I could not find anything similar online the output is an average of 3 V but I want to understand why, and whats the formula for it.
thanks, but are ignoring all the resistor values and the negative input voltage, so your answer is not correct, if you dont believe me just build that circuit with the resistors and you would see.
I feel good that I'm not the only one who does not know the formula, it is a bit complicated with the negative voltage, the op-amp I can see is just a buffer. but how does resistor and the negative voltage affect the value?
I agree with godfreyl. The diagram shows 5V connected directly to R3, so R1 and R2 have no affect on the voltage (assuming ideal components). Thus the output voltage should be 5V. No Ohm's law needed.