Non Inverting Op Amp. We call this. The non inverting op amp circuit is biased at half the rail voltage.
The resulting values are in kilo ohms kω. It is for this reason that the circuit is sometimes referred to as a virtual earth amplifier. The amplifier s differential inputs consist of a non inverting input with voltage v and an inverting input with voltage v.
By setting the operating point at this voltage the maximum swing can be obtained on the output without clipping.
As said above an op amp has a differential input and single ended output. The resulting values are in kilo ohms kω. It is for this reason that the circuit is sometimes referred to as a virtual earth amplifier. Potential dividers of lm339 are connected to the inverting and non inverting inputs of the op amp to give some voltage at these terminals.
