Recent content by GRW

Thanks for all your help guys, after a decent sleep last night I woke up this morning and after re reading the suggestions I was able to derive it no trouble. Thanks again and I look forward to being part of the forum! GRW

It's the circuit analysis for the derivation here that I am struggling with. Sorry if my initial explanation was poor.

Sorry but I don't have any way of uploading my paper working to a computer. It is as in Fig 1, with Rin linked between the + and - terminals of the Op Amp.

Thanks for your reply Nascent, I have already completed part A but I can't see how is it that relevant to part B? I know the equivalent circuit and that Rin is in the Op Amp internally and that A is the Op Amp gain. Any further guidance on how the two relate / where to start with part B would...

[ mod note: thread title corrected ][/color] Hi All, My first post in the forums, hopefully I'll be able to give out as much help as I receive. I'm currently stuck on an Op Amp gain derivation. Attached is the question and diagram, the derivation I am struggling with is part B. I understand...