Reduce DAC output current ? - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, 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
Thread Tools Search this Thread
Old 10th January 2006, 05:40 PM   #1
diyAudio Member
Bernhard's Avatar
Join Date: Apr 2002
Location: Munich
Default Reduce DAC output current ?


how can I reduce the output current of a DAC by 100 or so ?
Any active circuit with op amp for 1 x current in -> 1 / 100 x current out ?
  Reply With Quote
Old 10th January 2006, 10:46 PM   #2
diyAudio Member
Join Date: Jan 2001
Location: Scandinavia
I recommend that you look in Horrowitz and Hill, The Art of Electronics - as per my memory, there should be current divider circuitry using resistors (passive) in there which might help you + a bunch of active circuits. It is a really good book. You can also do some interesting things with current mirrors and also mess with the reference setting of DAC devices (even that is usually already optimized).

However you also mention discrete. To me it would be easier to set up a bunch of current sources using either resistors against a fixed voltage or traditional current sources.

I understand that one of the issues with a resistor network is noise. Good luck and let us know how you fare!

  Reply With Quote


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
COD - Current Output DAC BrianDonegan Twisted Pear 150 27th March 2013 04:15 PM
Dummy load to reduce output of 300w/ch amp? steve71 Solid State 18 1st January 2008 11:07 PM
How to reduce bass output??? bmunson Subwoofers 2 18th October 2005 04:36 AM
Help:How To Reduce Transformer Output Voltage? phill77 Solid State 0 21st April 2003 12:04 PM
Can i lower the bias current in the alpeh 5 to reduce power and heat? hifi Solid State 4 7th April 2002 07:48 PM

New To Site? Need Help?

All times are GMT. The time now is 07:50 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2