Operational Amplifiers and Negative Feedback - Physics
The op-amp open loop gain is A, and the divider ratio B is given as before by The voltage V in at the negative op-amp input is related to V out and V in by V in V in B(V out V in) But is also related to V out by the open-loop gain: V out = –A . Eliminating from these two equations gives the gain equation for an inverting amplifier (3) (This ...
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