Does anyone know of a good on-line opamp selector? I need to be able to compare parts from different manufacturers, and be able to select parameters (filters) such as package, number of amplifiers, supply voltage min / max, GBW etc.. Various suppliers (FEC, RS) have crude tools - but I am hoping to find something comprehensive to make life easier. (having comparative cost data would also be useful)

 

Part Miner would be the only tool that I can think of where you would not need to search several different sites at once for the same part.