I have made a single supply non inverting amplifier. The supply voltage given is 5 V. The schematic is shown. Now the problem is I am not able to generate 2.5 V accurately which is affecting amplification. The 10 K resistor connected to inverting terminal has to connected to 2.5 V. A resistor divider with opamp buffer is not able to generate 2.5 V accurately.
Is there any other approach to amplify signals about half the supply voltage in single supply circuits?