OPA 604, 627...

Tomom · 7th November 2012, 07:52 PM

Would anyone know where to get genuine OPA604 and OPA627 and what could be the price? And what is the difference between AP and BP...Thanks!

QSerraTico_Tico · 7th November 2012, 09:53 PM

Quote:

Originally Posted by Tomom

Would anyone know where to get genuine OPA604 and OPA627 and what could be the price? And what is the difference between AP and BP...Thanks!

Please read the data sheet

DUG · 7th November 2012, 11:49 PM

Digi-Key

Tomom · 8th November 2012, 01:52 AM

Quote:

Please read the data sheet

Thanks...There was nothing on price and where to get it in data sheet... oh, AP and BP, yes I found about that two days ago...

Quote:

Digi-Key

Dug, thanks, I will check... Do you have any practical experience with NE5534 and those two OPA... I am thinking to replace NE5534 with OPA604 in my SONY CDP501. Would that improve sound in any way?

AndrewT · 8th November 2012, 01:05 PM

Very different!
I would conclude from that: the chips will get used for different purposes.

Mooly · 8th November 2012, 06:10 PM

Quote:

Originally Posted by Tomom

Thanks...There was nothing on price and where to get it in data sheet... oh, AP and BP, yes I found about that two days ago...

Dug, thanks, I will check... Do you have any practical experience with NE5534 and those two OPA... I am thinking to replace NE5534 with OPA604 in my SONY CDP501. Would that improve sound in any way?

I used OPA604's to replace NE5534's in a Micromega with excellent results but it may not be a straight swap,

Swapping Op-Amps... you have checked to see it's stable haven't you ?

Tomom · 8th November 2012, 10:41 PM

Quote:

I used OPA604's to replace NE5534's in a Micromega with excellent results but it may not be a straight swap,

Swapping Op-Amps... you have checked to see it's stable haven't you ?

Thank you Mooly; I went to a linked thread where you explained about oscillations and op-amp stability, very good and will help me too. In regards to discussion on that other thread (Swapping op-amps...) it happens that I have an old Tekronix 465M 100MHz oscilloscope, which, at one point in the past, I was thinking to replace with 60 MHZ digital (yeah, I know, silly idea, don't know why...probably new-must-be-better thought); now I am glad I didn't.

7th November 2012, 07:52 PM	#1
Tomom diyAudio Member Join Date: Dec 2010	OPA 604, 627... Would anyone know where to get genuine OPA604 and OPA627 and what could be the price? And what is the difference between AP and BP...Thanks!

7th November 2012, 11:49 PM	#3
DUG diyAudio Member Join Date: Jan 2003 Location: mississauga ontario canada	Digi-Key __________________ Doug We are all learning...we can all help "You can't stop the signal, Mal. Everything goes somewhere..."

8th November 2012, 01:05 PM	#5
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Very different! I would conclude from that: the chips will get used for different purposes. __________________ regards Andrew T.

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