yes that is what I found.
Like I said similar to the idea I had but this works for CCS.
What do you think?
EDIT: have you used this since you had link available right away? Does it work well?
Since you claim it "is a very good idea for a temp compensated CCS" I thought you tried it ?
No I didn't. I meant to say that it looks like a clever idea and IMHO has potential to work.
I mean logic is straightforward and wouldn't see why it wouldn't work.
How it sounds, I have no clue.
Maybe this is easier to bias although Gm is lower then in the bigger one :http://documentation.renesas.com/doc/products/transistor/rej03g0122_2sj76ds.pdf
Unfortunately this is an EOL product.
Unfortunately this is an EOL product.
I found this, very similar to my original design :http://bildarkiv.hififorum.nu/Ryssen/Pic/Rör/diyAudio-CCS-beta2.pdf
In his book he mentions an HF / RF transistor with very low output capacitance.
Have to look it up.
In his book he mentions an HF / RF transistor with very low output capacitance.
Have to look it up.
Concerning the noise from the CCS i thought that the noise will be divided by the gain the CCS brings. So it can be higher noise then the input stage. Also the output node is high impedance so i think the current noise matters more then the voltage noise. This is only a tendency and i hope i am right. I did not come up with a formula so far but it may be already somewhere in the books.
