Replacement for OPA603? - diyAudio
Go Back   Home > Forums > Design & Build > Parts

Parts Where to get, and how to make the best bits. PCB's, caps, transformers, etc.

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
Reply
 
Thread Tools Search this Thread
Old 22nd October 2003, 09:58 AM   #1
diyAudio Member
 
Onvinyl's Avatar
 
Join Date: Aug 2002
Location: Germany
Default Replacement for OPA603?

Hi,
as you might know, the opa603 (current-feedback) is discontinued. Is there a direct replacement you happen to know about?
greets,
Rüdiger
  Reply With Quote
Old 22nd October 2003, 10:30 AM   #2
Arti is offline Arti  Poland
diyAudio Member
 
Join Date: Oct 2003
Location: Lublin
Hi
I had the same problem for one of my projects. In AD told me direct replacement is AD811 but I danno it is still avaliable
  Reply With Quote
Old 22nd October 2003, 10:50 AM   #3
Electrons are yellow and more is better!
diyAudio Member
 
peranders's Avatar
 
Join Date: Apr 2002
Location: Göteborg, Sweden
Blog Entries: 4
If you could tell us where you have it or even a schermatics it would be easier to suggest something.
__________________
/Per-Anders (my first name) or P-A as my friends call me
Super Regulator SSR03 Group buy
  Reply With Quote
Old 22nd October 2003, 10:57 AM   #4
diyAudio Member
 
Join Date: Sep 2002
Location: Sweden
Recommended replacement according to TI is THS3061, but
they note it is not pin-compatible and may differ in parameters.

http://focus.ti.com/docs/prod/produc...ection=rep_dev
  Reply With Quote
Old 22nd October 2003, 10:59 AM   #5
diyAudio Member
 
Onvinyl's Avatar
 
Join Date: Aug 2002
Location: Germany
Default It's the beast...

...
http://www.klaus-boening.de/html/laboheme.html

Rüdiger
  Reply With Quote
Old 22nd October 2003, 11:02 AM   #6
diyAudio Member
 
Onvinyl's Avatar
 
Join Date: Aug 2002
Location: Germany
@Christer

... and it's smd, I think. I'm hardwiring, so it's hardly an option...

currently, I'm checking el2160 (datasheet only, of course...)
Rüdiger
  Reply With Quote
Old 22nd October 2003, 11:47 AM   #7
Banned
 
Join Date: Dec 2001
Location: Zamboanga, City of Flowers, Mindanao
Send a message via Yahoo to Elso Kwak
Exclamation AD811

Hi, AD811 still available but sound is different from OPA603.
Beware this is a extremely wide bandwith device and needs proper supply decoupling and cooling.
  Reply With Quote
Old 22nd October 2003, 12:51 PM   #8
diyAudio Member
 
Onvinyl's Avatar
 
Join Date: Aug 2002
Location: Germany
Hi Elso,
are you talking about a 'sonic footprint' of the ad811 irrespective of an actual circuit? If so, could you describe the differences?
Rüdiger
  Reply With Quote
Old 22nd October 2003, 12:59 PM   #9
Electrons are yellow and more is better!
diyAudio Member
 
peranders's Avatar
 
Join Date: Apr 2002
Location: Göteborg, Sweden
Blog Entries: 4
I think you can test just about any good performing CBF opamp. Notice that Walt Jung or one of his cowriters has described how you connect a transformer in order to get lower distortion. It's in this book
__________________
/Per-Anders (my first name) or P-A as my friends call me
Super Regulator SSR03 Group buy
  Reply With Quote
Old 22nd October 2003, 01:19 PM   #10
diyAudio Member
 
Holger Barske's Avatar
 
Join Date: Jan 2001
Location: Ruhrgebiet
Rüdiger,
I have been talking to Klaus concerning this issue. We both think National LM6181 would be worth a try.
__________________
Best regards: Holger
www.holgerbarske.com - Deutschsprachiges Paradise-Support-Forum
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Replacement for CDM 12.1 Sandor Digital Source 4 12th June 2010 08:01 PM
MTX 5 ch pot replacement pk386 Parts 2 1st October 2006 04:32 AM
replacement cap for T-amp: How big? MEXXX Class D 5 10th December 2004 12:30 PM
looking for a replacement for pcb cad bigpanda Solid State 1 18th September 2004 07:24 AM


New To Site? Need Help?

All times are GMT. The time now is 12:29 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2