Quad RC4558?

[Morocotopo]

Hi people, a question:

I need to replace two RC4558´s with one quad package chip for layout reasons. Which one should I get?  Is there such a thing as a quad 4558?

Thanks for the help.

[MikeH]

Not that I've ever heard of... probably have to use a TL074

[StephenGiles]

Easier to use a bigger box I would have thought.

[cpm]

TL074 should be fine for most applications

be careful when using the four opamps in the same ic, though.
They may generate noise from one opamp to the others, if you use an opamp that goes into saturation (comparator, oscillators, hard clipped, etc), mixed with other opamp that is doing clean audio (or filter, whatever). Ther you will probably suffer from current spikes and ground noises that wont be able to isolate as they all share the same power routes

[Mark Hammer]

LM324 is probably as close as you'll get, currently.  It has the same pinout as a TL074.

[Morocotopo]

Thanks guys for the answers. This is not a od circuit, it´s a flanger. The quad (actually three opamps, one will remain unused) will do buffer/inv amp duties, so no noise bleed risk (at least I hope!). The oscillator will be a separate chip. Will try the LM324, and since it has the same pinout, eventually the TL074/84.