A voltage follower" with a gain" is in this case a little bit disturbing. It is a voltage follower circuit where the output voltage of the OAMP is the same as the voltage given by the resistors divider.It is a voltage follower with a gain of R2/(R1+R2)
Hello,
Could you help me find out what type of OP circuit this is?
I believe its an inverting circuit, but what type exactly?
Thank you very much
View attachment 80116
Thanks for that, also is it a passive or active circuit, because I am having trouble distinguishing between the two. From what I read, passive circuits usually have no OP Amp but not always?The advantage of this circuit is that the output voltage of the OPAMP is mostly independent from the current going through the resistors. Also, the circuit on the left is not impacted by the circuit on the right due to the high impedance of the OPAMP input leads.
Note: it IS NOT an inverter. It has negative feedback so that the circuit is stable (no oscillation). This guarantees that the two inputs of the OPAMP have the same voltage value.
It is active. Why? Because op-amp needs external power supplies to function, these power supplies are normally not shown, but whenever you see op-amp triangle symbol, you should automatically assume that you need power supplies to power the op-amp.Thanks for that, also is it a passive or active circuit, because I am having trouble distinguishing between the two. From what I read, passive circuits usually have no OP Amp but not always?