TL084CN vs AD731

fossil2k · 7th September 2007, 03:45 PM

Hey guys, I'm trying to modify my pre-amp using TI084CN to AD731. Except from comparing the specifications, I'm not sure if the AD731 will fit as a direct replacement to TI084CN without any modifications to other components or values used. Can anybody enlighten me please?

x-pro · 7th September 2007, 05:11 PM

What is AD731?

Cheers

Alex

janneman · 7th September 2007, 06:06 PM

Maybe he means AD713. The 713 and the TL084 are both fet-input quads several decades old. They were two companies' answer to each other, and are very similar. If you want to update, take something a few generations more recent

Jan Didden

Leolabs · 8th September 2007, 02:02 AM

In the datasheet stated that:"Enhanced Replacement for LF347 and TLO84."

KSTR · 8th September 2007, 02:17 AM

OPA4134

- Klaus

fossil2k · 8th September 2007, 06:42 AM

Thanks for the reply. It is indeed AD713 and I'm still unsure if I should change to AD713. I mean, do I need to do any other modifications to the circuitry or just do a direct replacement to TL084CN?? Any better idea on what chips to use?

djk · 8th September 2007, 07:04 AM

"OPA4134"

No longer available in a DIP.

janneman · 8th September 2007, 07:35 AM

Quote:

Originally posted by Leolabs
In the datasheet stated that:"Enhanced Replacement for LF347 and TLO84."

Of course it said, this is marketing of course.
The 713 is also decades old, and that recommendation is probably from the 80's?

Get something really better.

Jan Didden

fossil2k · 9th September 2007, 05:07 PM

Thanks djk..OP3134 is only available in SMD..now have to think of the problem of sourcing a PCB that allow me to convert SMD into DIP.

djk · 9th September 2007, 07:45 PM

I suggest two dual SMD types, one on either side of an adaptor board.

http://www.futurlec.com/PCBService.shtml

will do a good price on a small order, the only thing left to find is pins to go from the adaptor board to the original 14 pin DIP holes.

7th September 2007, 03:45 PM	#1
fossil2k diyAudio Member Join Date: Sep 2007	TL084CN vs AD731 Hey guys, I'm trying to modify my pre-amp using TI084CN to AD731. Except from comparing the specifications, I'm not sure if the AD731 will fit as a direct replacement to TI084CN without any modifications to other components or values used. Can anybody enlighten me please?

7th September 2007, 06:06 PM	#3
janneman diyAudio Member Join Date: May 2002 Location: Where Germany, The Netherlands and Belgium meet Blog Entries: 6	Maybe he means AD713. The 713 and the TL084 are both fet-input quads several decades old. They were two companies' answer to each other, and are very similar. If you want to update, take something a few generations more recent Jan Didden __________________ /Another new issue: Linear Audio Volume 3!

8th September 2007, 07:04 AM	#7
djk diyAudio Member Join Date: Feb 2001 Location: USA	"OPA4134" No longer available in a DIP. __________________ Candidates for the Darwin Award should not read this author.

9th September 2007, 07:45 PM	#10
djk diyAudio Member Join Date: Feb 2001 Location: USA	I suggest two dual SMD types, one on either side of an adaptor board. http://www.futurlec.com/PCBService.shtml will do a good price on a small order, the only thing left to find is pins to go from the adaptor board to the original 14 pin DIP holes. __________________ Candidates for the Darwin Award should not read this author.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

7th September 2007, 05:11 PM	#2
x-pro diyAudio Member Join Date: Apr 2003 Location: London	What is AD731? Cheers Alex

8th September 2007, 02:02 AM	#4
Leolabs diyAudio Member Join Date: Dec 2004 Location: Bukit Mertajam	In the datasheet stated that:"Enhanced Replacement for LF347 and TLO84."

8th September 2007, 02:17 AM	#5
KSTR diyAudio Member Join Date: Jul 2007 Location: Central Berlin, Germany	OPA4134 - Klaus

8th September 2007, 06:42 AM	#6
fossil2k diyAudio Member Join Date: Sep 2007	Thanks for the reply. It is indeed AD713 and I'm still unsure if I should change to AD713. I mean, do I need to do any other modifications to the circuitry or just do a direct replacement to TL084CN?? Any better idea on what chips to use?

9th September 2007, 05:07 PM	#9
fossil2k diyAudio Member Join Date: Sep 2007	Thanks djk..OP3134 is only available in SMD..now have to think of the problem of sourcing a PCB that allow me to convert SMD into DIP.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read