Opamp decoupling - 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 12th September 2006, 05:14 PM   #1
Khron is offline Khron  Romania
diyAudio Member
 
Join Date: Jul 2005
Location: Finland
Send a message via AIM to Khron Send a message via MSN to Khron Send a message via Yahoo to Khron
Default Opamp decoupling

I'm in the process of building myself an active 2-way crossover (Nuuk's discrete buffer for the input, TI TLE2072s as active devices and OPA627 on the outputs).


QUESTION:
Does each opamp need a 0.1uF cap

1) between each of the supply rails and GND
2) between the two supply rails (V+ to V-)
3) both of the above ?
  Reply With Quote
Old 12th September 2006, 05:36 PM   #2
diyAudio Member
 
FastEddy's Avatar
 
Join Date: Jun 2006
Location: North Californie
Default #3 = for best results

... but one for each rail driving both op-amps would probably do the trick.

I would build it first, check it out, before adding any more caps than necessary other than prudent practice.

(You might look / see TI's app. notes = http://focus.ti.com/docs/prod/folder...plicationnotes & http://focus.ti.com/docs/prod/folder...plicationnotes )

  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
decoupling caps for dip8 opamp - are they just there for a regulated supply? Archwn Chip Amps 7 20th December 2006 05:52 PM
Opamp decoupling schemes [& Better grounding] kaushama Chip Amps 5 8th December 2005 10:57 AM
opamp decoupling, and biasing audiokid25 Parts 1 25th April 2005 09:40 PM
Opamp Decoupling mrfeedback Solid State 17 3rd April 2003 02:02 PM


New To Site? Need Help?

All times are GMT. The time now is 05:44 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