Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

Current source in DDAC1543 to do I to V conversion?
Current source in DDAC1543 to do I to V conversion?
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 16th February 2004, 05:44 PM   #1
Bas Horneman is offline Bas Horneman  Netherlands
diyAudio Moderator Emeritus
 
Bas Horneman's Avatar
 
Join Date: Apr 2002
Location: The Netherlands
Default Current source in DDAC1543 to do I to V conversion?

Forgive me for this question. It does not really belong in the digital forum I suppose and it is one that stems from utter ignorance.

But since it has to do with my DDDAC1543
I dared to ask it here.

A resistor is a current to voltage converter. In tube amps often a current source is used to replace a resistor for it's current to voltage job.

Often a simple little CCS is effective. And for this I use a DN2540. My question is: "Could a single depletion mode mosfet replace the resistors in Doede's DAC?" or is there simply not enough voltage to get it to work ? Or are there still other factors at work that would make this a misarable failure.
If it would work "Which I doubt" for what current would the CCS have to be set?

Regards,
Bas
  Reply With Quote
Old 16th February 2004, 06:12 PM   #2
Andypairo is offline Andypairo  Italy
diyAudio Member
 
Andypairo's Avatar
 
Join Date: Sep 2002
Location: near Milano , Italy
Hello Bas,
a current source can help I/V conversion but cannot do all the job.

A good circuit for TDA1543 is Rbroer's simple I/V or, even better, his Super-Pair I/V , which have been posted in this section of the forum recently.

I'm going to try it out.

Cheers

Andrea
  Reply With Quote

Reply


Current source in DDAC1543 to do I to V conversion?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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
BOZ with current source? Decker Pass Labs 2 9th May 2007 04:06 PM
Aleph-type current source, but source follower this time tschrama Pass Labs 4 29th July 2005 01:55 PM
Source follower electret mike -> use with current source? capslock Solid State 1 28th February 2003 01:54 PM
R21? and Current Source AC Current Gain macka Pass Labs 9 20th May 2002 09:58 PM
Current source for BOZ harvardian Pass Labs 49 6th May 2002 03:44 PM


New To Site? Need Help?

All times are GMT. The time now is 10:43 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki