Best low budget OPAmp ? - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

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 13th July 2007, 05:22 PM   #1
diyAudio Member
 
Jan Dupont's Avatar
 
Join Date: Apr 2003
Location: Copenhagen, Denmark
Send a message via MSN to Jan Dupont
Question Best low budget OPAmp ?

What is your experience ??

Which low budget single 8 pin DIP OPAmp (let's say a price below €5.00 or $7.00) are best ??
__________________
Free Schematic and Service Manual downloads www.audio-circuit.dk, Company: www.dupont-audio.com, Joint venture: www.DupontMantra.com
  Reply With Quote
Old 13th July 2007, 06:32 PM   #2
Dr_EM is offline Dr_EM  United Kingdom
diyAudio Member
 
Dr_EM's Avatar
 
Join Date: Oct 2006
Location: Swindon
OPA2134 (OPA134 for single) seems good for a lot of purposes. A BJT input op-amp may exhibit lower noise but will only be suitable for some applications.
  Reply With Quote
Old 13th July 2007, 07:28 PM   #3
diyAudio Member
 
Jan Dupont's Avatar
 
Join Date: Apr 2003
Location: Copenhagen, Denmark
Send a message via MSN to Jan Dupont
Hmmm....
The OPA134 seems like a good choice !
__________________
Free Schematic and Service Manual downloads www.audio-circuit.dk, Company: www.dupont-audio.com, Joint venture: www.DupontMantra.com
  Reply With Quote
Old 14th July 2007, 01:45 AM   #4
diyAudio Member
 
maxlorenz's Avatar
 
Join Date: Oct 2003
Location: osorno , Chile
Hi ACD,

Why not this one?
http://www.national.com/pf/LM/LME49710.html

...the single version of the famous LM4562.
(long brake-in, if you believe in such things)

US$3.38 at digikey (but check for free samples at the previous link)

http://www.digikey.com/scripts/dksea...=LME49710NA-ND

Cheers,
M
  Reply With Quote
Old 14th July 2007, 03:14 AM   #5
Ryssen is offline Ryssen  Sweden
diyAudio Member
 
Ryssen's Avatar
 
Join Date: Dec 2003
Location: Sweden--> Here
Go,go,go....

But the free sampels had a shipping cost that I could have gotten 10-15 of them at digikey...
__________________
Regards Åke
  Reply With Quote
Old 14th July 2007, 04:02 AM   #6
diyAudio Member
 
jackinnj's Avatar
 
Join Date: Apr 2002
Location: Llanddewi Brefi, NJ
For the highest ratio of quality to cost -- NE5532 and NE5534 -- these workhorses can really perform
  Reply With Quote
Old 14th July 2007, 05:51 AM   #7
Nordic is offline Nordic  South Africa
diyAudio Member
 
Nordic's Avatar
 
Join Date: Sep 2005
of course there is no such thing as a universal opamp, and the main groups, fets and BJTs shine under difirent conditions...

Despite graphs etc... my vote goes to opa2132 (the more expensive cousin of opa2134 but it should stll be about $6)

The ONE reason this chip stands out to me is good noise rejection on the inputs.... stuff like PC soundcards.. this has been my cheap chip rolling experience.
  Reply With Quote
Old 14th July 2007, 06:44 AM   #8
diyAudio Member
 
Jan Dupont's Avatar
 
Join Date: Apr 2003
Location: Copenhagen, Denmark
Send a message via MSN to Jan Dupont
Thanks all

Even though the latest suggestions wasn't single opamps
__________________
Free Schematic and Service Manual downloads www.audio-circuit.dk, Company: www.dupont-audio.com, Joint venture: www.DupontMantra.com
  Reply With Quote
Old 14th July 2007, 06:46 AM   #9
Nordic is offline Nordic  South Africa
diyAudio Member
 
Nordic's Avatar
 
Join Date: Sep 2005
well the single version is opa132.... it has the benefit of offset adjustment pins too.
  Reply With Quote
Old 14th July 2007, 06:49 AM   #10
diyAudio Member
 
Jan Dupont's Avatar
 
Join Date: Apr 2003
Location: Copenhagen, Denmark
Send a message via MSN to Jan Dupont
I was aware of the single version OPA132
__________________
Free Schematic and Service Manual downloads www.audio-circuit.dk, Company: www.dupont-audio.com, Joint venture: www.DupontMantra.com
  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
Single supply opamp - unequal rail voltage and opamp selection Hans L Parts 8 19th February 2006 03:15 PM
Regulate the psu of a power opamp with a similar power opamp? Franz G Chip Amps 34 19th October 2004 11:49 AM
How bad is budget? Pbassred Solid State 10 27th March 2004 07:53 PM
Help with my budget sub diy vegeotto Subwoofers 2 24th January 2004 04:21 AM
Budget BOZ Taco Pass Labs 3 25th November 2002 11:48 AM


New To Site? Need Help?

All times are GMT. The time now is 04:35 AM.


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