Killer I/V opamp

mudihan · 17th July 2006, 05:57 AM

LT1469

Go to linear.com and find out yourself.

I am using it in my CD player and the improvement over LT1364, a pair of AD843, and LM6172, is clear, in my opinion of course.

mudihan · 17th July 2006, 07:41 PM

Ok, I do want someone to confirm my finding. Or give some comments regarding the specs, which I think are superb for I/V. They sound very clean and quite.

fastcat95 · 17th July 2006, 08:55 PM

Hello!

Have you compared this op-amp to the OPA627
or the AD811 for use an an I/V converter?

Ryssen · 18th July 2006, 12:34 AM

Agree!!!Best i ever heard,thou I have it in a headphoneamp,anyway it´s the best...

mudihan · 18th July 2006, 03:29 AM

OPA627 is one of my favorite. However, I don't like it that much for I/V conversion because of it's BB laid-back sound (slightly coloued, IMO). LT1469's sound is as clean as OPA627's (That's quite an achivement), but is quieter and more neutral (is there such a thing as More Neutral). For the final audio output, LT1469 may lack output urrent (20ma) and some character. That's why I am using OPA627s there in the same CD player.

AD811 -- haven't compared yet.

I just put LT1364 in the I/V stage and sound became somewhat muddy and busy (read: noisy). It's another excellent opamp, IMO, with superb specs and decent price. However, for I/V conversion, LT1469 is a much better choice.

NjoyTHEMUSIC · 18th July 2006, 04:34 PM

Hi-

Did you make a dedicated daughter board for this I/V cct, or did you hard wire it ?

-Andy-

mudihan · 18th July 2006, 04:42 PM

I do not completely understand your question. I am talking ahout a commercial cd player that has an I/V stage. I am just swapping the opamps -- no need for a daughter board or to hard wiring, just sockets.

If you are talking about single vs dual opamps, yes, for OPA627s, I used the Browndog adapters, since the original position was for two dual opamps.

NjoyTHEMUSIC · 18th July 2006, 04:58 PM

Ah right !

Appologies for the confusion !

The reason I asked was because I'm looking for a cct to be able to use
I/V & modify my cd player.

BTW, what cd player did you modify with this ic ?

cheers,

-Andy-

mudihan · 18th July 2006, 05:05 PM

It's an Ariston CD Player. That's the name, since it was the only cd player Ariston made in the early 90s.

PinkPanther-2 · 25th July 2006, 11:24 AM

I just send request to Linear Technology for free samples of LT1469. Maybe next week I'll can tell you my impressions.

17th July 2006, 05:57 AM	#1
mudihan diyAudio Member Join Date: Jan 2004 Location: Texas	Killer I/V opamp LT1469 Go to linear.com and find out yourself. I am using it in my CD player and the improvement over LT1364, a pair of AD843, and LM6172, is clear, in my opinion of course.

18th July 2006, 12:34 AM	#4
Ryssen diyAudio Member Join Date: Dec 2003 Location: Sweden--> Here	Agree!!!Best i ever heard,thou I have it in a headphoneamp,anyway it´s the best... __________________ Regards Åke

18th July 2006, 04:34 PM	#6
NjoyTHEMUSIC diyAudio Member Join Date: Mar 2006 Location: Where the sheep scream for Mercy !!	Hi- Did you make a dedicated daughter board for this I/V cct, or did you hard wire it ? -Andy- __________________ I wish I had one more brain cell.....then the one that I've got wouldn't be so lonely (!)

18th July 2006, 04:58 PM	#8
NjoyTHEMUSIC diyAudio Member Join Date: Mar 2006 Location: Where the sheep scream for Mercy !!	Ah right ! Appologies for the confusion ! The reason I asked was because I'm looking for a cct to be able to use I/V & modify my cd player. BTW, what cd player did you modify with this ic ? cheers, -Andy- __________________ I wish I had one more brain cell.....then the one that I've got wouldn't be so lonely (!)

25th July 2006, 11:24 AM	#10
PinkPanther-2 diyAudio Member Join Date: Jun 2006	LT1469 I just send request to Linear Technology for free samples of LT1469. Maybe next week I'll can tell you my impressions.


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17th July 2006, 07:41 PM	#2
mudihan diyAudio Member Join Date: Jan 2004 Location: Texas	Ok, I do want someone to confirm my finding. Or give some comments regarding the specs, which I think are superb for I/V. They sound very clean and quite.

17th July 2006, 08:55 PM	#3
fastcat95 diyAudio Member Join Date: Jul 2003 Location: Indiana	Hello! Have you compared this op-amp to the OPA627 or the AD811 for use an an I/V converter?

18th July 2006, 03:29 AM	#5
mudihan diyAudio Member Join Date: Jan 2004 Location: Texas	OPA627 is one of my favorite. However, I don't like it that much for I/V conversion because of it's BB laid-back sound (slightly coloued, IMO). LT1469's sound is as clean as OPA627's (That's quite an achivement), but is quieter and more neutral (is there such a thing as More Neutral). For the final audio output, LT1469 may lack output urrent (20ma) and some character. That's why I am using OPA627s there in the same CD player. AD811 -- haven't compared yet. I just put LT1364 in the I/V stage and sound became somewhat muddy and busy (read: noisy). It's another excellent opamp, IMO, with superb specs and decent price. However, for I/V conversion, LT1469 is a much better choice.

18th July 2006, 04:42 PM	#7
mudihan diyAudio Member Join Date: Jan 2004 Location: Texas	I do not completely understand your question. I am talking ahout a commercial cd player that has an I/V stage. I am just swapping the opamps -- no need for a daughter board or to hard wiring, just sockets. If you are talking about single vs dual opamps, yes, for OPA627s, I used the Browndog adapters, since the original position was for two dual opamps.

18th July 2006, 05:05 PM	#9
mudihan diyAudio Member Join Date: Jan 2004 Location: Texas	It's an Ariston CD Player. That's the name, since it was the only cd player Ariston made in the early 90s.

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