opamp swap - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

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 20th February 2007, 01:12 AM   #1
impsick is offline impsick  United States
diyAudio Member
 
impsick's Avatar
 
Join Date: Dec 2006
Location: Huntington Beach, Ca
Default opamp swap

I hate to post a whole new thread for this but my searching has come up empty. i know there is all kinds if info online but none regarding my two choices at hand. maybe cause its not compatible, i dont know, so i ask diyaudio...

ok so i got this mic-pre with NE5534 opamps in it and i was wondering if i can put some AD744 in its place just to see the difference? is this possible?

thanks, Omar
__________________
"Nothing happens for a reason. There are just reasons why things happen." Quote me on that. http://stores.ebay.com/AudioGrade?_rdc=1
  Reply With Quote
Old 20th February 2007, 02:20 AM   #2
gootee is offline gootee  United States
diyAudio Member
 
Join Date: Nov 2006
Location: Indiana
Blog Entries: 1
I went to http://www.google.com and found the NE5534 datasheet "immediately":

http://www.onsemi.com/pub/Collateral/NE5534-D.PDF

And the AD744 datasheet is available from Analog Devices' website:

http://www.analog.com/UploadedFiles/...eets/AD744.pdf

You can right-click on the links and select "Save As", to save copies to your hard drive.

Good luck.

- Tom Gootee

http://www.fullnet.com/~tomg/index.html

-
  Reply With Quote
Old 20th February 2007, 02:42 AM   #3
impsick is offline impsick  United States
diyAudio Member
 
impsick's Avatar
 
Join Date: Dec 2006
Location: Huntington Beach, Ca
ya, i have both data sheets, im just being lazy. see the pins seem to be in the same spots im just confused on the whole balance and null thing. im a noob. but thanks man, i guess i'll try to be productive and pretend to understand all that data on the sheets. ha

god dang 20+ views and no "yes" or "no"? i know you all know the answer and are just laughing seeing how long you could drag this out before i snap. there, i snapped.
__________________
"Nothing happens for a reason. There are just reasons why things happen." Quote me on that. http://stores.ebay.com/AudioGrade?_rdc=1
  Reply With Quote
Old 20th February 2007, 09:10 PM   #4
diyAudio Member
 
Join Date: Jan 2002
Location: Silicon Valley, CA, USA
Op amp balance and null circuits are rarely used in audio. They are only useful if you are using DC coupling with no DC blocking capacitors.

IMHO, the AD744 would be a poor choice for a microphone preamp. It would probably work, but it would be noisy. Try a good low noise bipolar input device like the AD797, OPA227/228, LT1028, LT1128, or LT1115 instead.
  Reply With Quote
Old 20th February 2007, 09:19 PM   #5
impsick is offline impsick  United States
diyAudio Member
 
impsick's Avatar
 
Join Date: Dec 2006
Location: Huntington Beach, Ca
nice! thanks for your reply, exactly what i needed to hear.
__________________
"Nothing happens for a reason. There are just reasons why things happen." Quote me on that. http://stores.ebay.com/AudioGrade?_rdc=1
  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
OpAmp Swap? edge4syn Tubes / Valves 8 9th February 2009 01:30 PM
opamp v4580m swap Faitho Digital Source 2 16th March 2008 05:13 PM
Single supply opamp - unequal rail voltage and opamp selection Hans L Parts 8 19th February 2006 02:15 PM
swap CS4390 guytou Digital Source 0 18th August 2005 10:35 AM
want to swap some tubes briand Swap Meet 1 9th June 2003 12:59 AM


New To Site? Need Help?

All times are GMT. The time now is 03:53 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