Non-inverting operational amplifier:
The output is an in-phase amplified version of the input.
The input signal is applied to the non-inverting (+) input and the output is applied back to the inverting (-) input through the feedback circuit formed by the input resistor Rin and the feedback resistor Rf. This creates negative feedback.
The amplification Acl (closed loop voltage gain) is calculated by [Av = 1+( Rf/Rin)].
