discrete balanced to unbalanced conveter?

nightanole

Member
2009-02-28 1:24 pm
I can do balanced to unbalanced all day long with differential opamps. Is there away to do it simply with just fets or mosfets?

My dac is a Wolfson WM8741/wm8740 balanced voltage out with a 2.5v offset. Im trying to convert that to buffered unbalanced for $20 or less a channel. I already am in on the dcb1 buffer group buy, but that doesnt help me here.
 

nightanole

Member
2009-02-28 1:24 pm
Yea im just gonna rig the opamp with positive and negative rails so i dont have to cap couple more the once.

Ya the wolf dac (i thought most) idles at 2.5v and then swings 0-5. If it didnt then id need a positive and negative rail to the dac.

How else would it work with modern dacs that just accept 3.3 and 5vdc?