Non Inverting Op Amp Circuit. The second basic configuration of an operational amplifier circuit is that of a non inverting operational amplifier design. Op amp uses voltage shunt feedback to provide stabilized voltage gain.
Those extra resistors are used to set the gain of the op amp stage. The non inverting amplifier configuration is one of the most popular and widely used forms of operational amplifier circuit and it is used in many electronic devices. The signal which is needed to be amplified using the op amp is feed into the positive or non inverting pin of the op amp circuit whereas a voltage divider using two resistors r1 and r2 provide the small part of the output to the inverting pin of the op amp circuit.
The voltage gain is positive indicating that for ac input the output is in phase with the input signal and for dc.
Non inverting amplifier summary a non inverting amplifier uses a voltage divider bias negative feedback connection. The value of output depends on the difference between the two inputs. The second basic configuration of an operational amplifier circuit is that of a non inverting operational amplifier design. For example if you had a microphone you may want a gain of 100 or even more.
