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TLE2426 alternatives?

post #1 of 13
3/29/06 at 2:16am
Thread Starter 
Just wondering, is TLE2426 the only chip solution for a voltage divider? doesn't anyone else make something for a railsplitter, like analog or national semiconductor or something? I know there are other ways to do this, but I was just wondering if anyone has ever found any quick and easy IC solution for this (maybe one that can handle more current?)
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post #2 of 13
3/29/06 at 3:07am
you can simply use an opamp to act as the rail splitter. if you need more current, you can buffer them, a cheaper solution is to get a high current out dual opamp and use the second channel as buffer.
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post #3 of 13
3/29/06 at 4:02am
Quote:
Originally Posted by threepointone
Just wondering, is TLE2426 the only chip solution for a voltage divider? doesn't anyone else make something for a railsplitter, like analog or national semiconductor or something? I know there are other ways to do this, but I was just wondering if anyone has ever found any quick and easy IC solution for this (maybe one that can handle more current?)
The TLE2426 is certainly not the only way to do it, but it's a convenient way, doesn't take up much PCB space, is cheap, works well (as long as you don't ask it to source/sink very much current), and does not require other external components to do its job.

AFAIK there are is equivalent part from National or Analog, etc.
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post #4 of 13
3/29/06 at 7:06pm
Thread Starter 
yeah, that's what I meant--I was looking for something that would be easy to add in and wouldn't force me to add a whole lot of stuff into the board.

which part #?

Quote:
AFAIK there are is equivalent part from National or Analog, etc.
which part? or do you mean there aren't?
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post #5 of 13
3/29/06 at 11:57pm
Quote:
Originally Posted by threepointone
which part? or do you mean there aren't?
Sorry, typo. I meant to say that National and Analog do not have an equivalent to the TLE2426.
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post #6 of 13
3/30/06 at 12:11am
a few transistors diodes and resistors can overcome the problem of the typical resistor divider. But the output impednace is still higher then TLE2426.
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post #7 of 13
3/31/06 at 3:46am
or maybe you could try this:

a buffered voltage divider. works well in all of my builds so far.
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post #8 of 13
3/31/06 at 9:12am
Sijosae has another rail splitter somewhere. A design by itself. Actually IIRC it may even be in tangent's guide.
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post #9 of 13
3/31/06 at 9:40am
Quote:
Originally Posted by Garbz
Sijosae has another rail splitter somewhere. A design by itself. Actually IIRC it may even be in tangent's guide.
which one? with the Opamp buffer? or this one?

taken from here.

i think there's more.

from here.

threepointone: pick one..
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post #10 of 13
11/8/09 at 12:33pm
Can somebody post the schematic for a dual op-amp railsplitter and buffer
A channel for the rail and the second as a buffer....advanced thx
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post #11 of 13
11/8/09 at 12:41pm
Maybe you can get some ideas here.

Found googling dual op-amp railsplitter.
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post #12 of 13
11/8/09 at 3:24pm
Thanks but the tangentsoft tutorial i allready know...there is a scheme for a op-amp based railsplitter
but i have only a dual op-amp...and if i'll use one channel as railsplitter...why to waste the second channel...i want to use it as buffer...i can try something out...but not shure if it'll work as i'm a newbie...and before doing somethin stubid i wanna know if there is such a schematic with a dual op-amp...one channel for railsplitter and one for buffer
Thank u one more time
Waiting a reply if anyone can post a schematic
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post #13 of 13
11/8/09 at 5:06pm
Quote:
Originally Posted by stoneshadow View Post
Thanks but the tangentsoft tutorial i allready know...there is a scheme for a op-amp based railsplitter
but i have only a dual op-amp...and if i'll use one channel as railsplitter...why to waste the second channel...i want to use it as buffer...i can try something out...but not shure if it'll work as i'm a newbie...and before doing somethin stubid i wanna know if there is such a schematic with a dual op-amp...one channel for railsplitter and one for buffer
Thank u one more time
Waiting a reply if anyone can post a schematic
If I understand you right, I think you should look at the PINT
http://tangentsoft.net/audio/pint/misc/sch-1.3.pdf
What opamp do you have in mind? Is it unity gain stable? Does it have enough output current?
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