Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
https://www.analog.com/static/imported-files/rarely_asked_questions/unused_op-Amp_article.html (Careful not to let the song get stuck in your head! :-()