Help needed with digital pots - diyAudio
Go Back   Home > Forums > Source & Line > Digital Line Level
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Digital Line Level DACs, Digital Crossovers, Equalizers, 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 30th March 2009, 08:25 AM   #1
poodina is offline poodina  India
diyAudio Member
Join Date: Jan 2009
Default Help needed with digital pots

Hi guys, I have a small query about digital pot, I am building a amplifier circuit [using Op Amps] where I need to use digital pots, one to control 0 to +10V and the other to control 0 to -10V. I have found there are digital pots with dual supply using +/-15V [or 0 to 30 V] from Analog devices [AD 5290. so there is no issue with voltage. What I want to know is ,

1. Can I use this digital pot be used to vary 0 to-10V [I will be using 2 , one for +v and other to vary -v], considering voltage in not an issue can a digital pot be used to vary o to -v ? which uses dual supply of + and - voltage, keeping the voltage applied to the resistor lower than the supply?

2. I need to use a 47Kohm pot, and only 50K pots are available what should I do?
  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
Digital Pots Dynsdale Tubes / Valves 5 14th September 2005 04:02 AM
FS: heatsinks and OPA549 +opamps/digital pots needtubes Swap Meet 0 8th September 2004 07:26 PM
digital pots xplod1236 Parts 5 27th April 2004 08:50 AM
Digital Pots in 5.1 System rehanabid Chip Amps 25 20th April 2004 08:07 AM
PCB For Digital Pots? PHilgeman Parts 0 23rd December 2003 12:50 PM

New To Site? Need Help?

All times are GMT. The time now is 03:05 PM.

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