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Has anyone experienced with these OPamps? LME49990NA and LME49860NA - Page 2

post #11 of 13
Thread Starter 
Quote:
Originally Posted by mikeaj View Post

That's got to be a weird optical illusion lol. Yes it should fit. It's DIP-8 form factor and pin spacing you're looking for, and that's DIP-8.
You can see the 5532 op amps (U5 and U8) near the bottom are SOIC-8.
With the added height from the adapter, it's still going to be less tall than the electrolytic capacitors to the right, so there's no problem there? Or maybe slightly taller. Anyway, the height doesn't matter unless there's another expansion card in the slot right next to the sound card.
Again, I'd expect 0 audible difference making the switch and maybe not even a difference in measured performance, but feel free to do what you want.

Thanks!

Although I think my Xonar Essence STX needs the dual chipped ones I believe.

Like this: http://www.ebay.com/itm/DUAL-SOIC-LME49990-DIP8-ADAPTER-/190662919693?pt=LH_DefaultDomain_0&hash=item2c6465460d#ht_1039wt_1396
post #12 of 13
Sorry for not catching that. You're right!

Usually people get the duals when dealing with audio stuff, so that's what I assume when seeing any SOIC-8 or DIP-8. Op amps have 3 functional terminals each, and you need a positive and negative supply, so that's 8 connections for a dual op amp IC. You want two so you can have one for the L channel and one for the R channel, so the dual packages are used unless you have a really high-end, OCD kind of design where you try to separate the L and R channels as much as possible (so use a separate package for each channel) for very very slightly lower crosstalk that nobody's going to hear. Or you want to pretend you have that kind of design or want to appeal to audiophile sensibilities, which happens often. rolleyes.gif
post #13 of 13
Thread Starter 
Quote:
Originally Posted by mikeaj View Post

Sorry for not catching that. You're right!
Usually people get the duals when dealing with audio stuff, so that's what I assume when seeing any SOIC-8 or DIP-8. Op amps have 3 functional terminals each, and you need a positive and negative supply, so that's 8 connections for a dual op amp IC. You want two so you can have one for the L channel and one for the R channel, so the dual packages are used unless you have a really high-end, OCD kind of design where you try to separate the L and R channels as much as possible (so use a separate package for each channel) for very very slightly lower crosstalk that nobody's going to hear. Or you want to pretend you have that kind of design or want to appeal to audiophile sensibilities, which happens often. rolleyes.gif

Haha I see.

Thanks for clearing that up!
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Overclock.net › Forums › Components › Sound Cards and Computer Audio › Has anyone experienced with these OPamps? LME49990NA and LME49860NA