OPA2227 chips

[matt09]

Hi there,

Hope this isnt classed as spam, does anyone have two of these lying around anywhere for a bit of money maybe, it would be really useful.

Many thanks

[peranders]

You should placed this thread under "Want to buy"

BTW: I'm sure people have samples (gotten for free) lying around.

[matt09]

I can't find them in the UK and TI, the only place that gave them out for free doesnt seem to do it anymore.

[5th element]

http://uk.farnell.com/

[lineup]

OPA 227, OPA2227, OPA327
and whatever the variants are called dual or single op
they are very good and useful for hifi audio
I have recommended these, in this forum,
and one other member Nordic from south-africa
have used them and like them very much
Also we have other members recommending these
One search will confirm this!

good choice!
good luck to find some!

/lineup - recommends

[matt09]

Thanks 5th element I thought i'd looked there but I must have forgotten.Thats £9.50 + shipping for two sinse I need the smd version ouch, which isnt too good on a student budget.

Oh well I guess I'll soon find out if im pushing my luck here.

[Mr Evil]

Does it have to be OPA2227? It is a superb op-amp, but also very expensive when you're a student. You could try something like OPA2134, which is also excellent but half the price.

[lineup]

Originally posted by matt09
Thanks 5th element I thought i'd looked there but I must have forgotten.Thats �9.50 + shipping for two sinse I need the smd version ouch, which isnt too good on a student budget.

Oh well I guess I'll soon find out if im pushing my luck here.

Originally posted by Mr Evil
Does it have to be OPA2227? It is a superb op-amp, but also very expensive when you're a student. You could try something like OPA2134, which is also excellent but half the price.

OPA2134 is very useful.
If you want to try something else OPA2xxx7 is a good erecommend, as I said.
Especially for microphone and other low level spplications,
but very good opamps for most anything in audio.

Do not know about price, compared to OPA2134 ... because this one JFET input op is a lot Bang for Buck, really

[matt09]

The reason I was looking for this one rather than the 2134 is that I will be powering large speakers and I have heard these opamps being described as a little bass bloated. I guess I'll have to fork out if on one replies soon.

[Mr Evil]

Don't listen to people who say that; for most circuits there is no significant difference between the two. I think the only place where the OPA2227 is really worth the extra is for low-noise applications.