Inverting Buffer Op Amp Circuit. R f feedback resistor. This arrangement is called an op amp follower or buffer.
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It is a type of operational amplifier circuit and an inverting amplifier mode. Ic1 s closed loop gain is fixed at around 45 times through a negative feedback circuit built using the r3 and r5 network. R in input resistor.
The buffer has an output that exactly mirrors the input assuming it s within range of the voltage rails so it looks kind of useless at first.
Advantage of non inverting op amp configuration over inverting op amp configuration. However the buffer is an extremely useful circuit since it helps to solve many impedance issues. V in input voltage. Vout r4 r1 vin1 vin2 when r1 r2 r4.
