[Fred_fred2004]

I've seen it before
 
http://www.amb.org/forum/mini3-portable-headphone-amplifier-f16/shameless-mini3-copies-t206.html
 
cheers

 

[Lil' Knight]

Yes, I do know that one. Just wondering if this one is the same... I'd rather call this the Mini^2.5 or Mini^3.5.

 

[i_djoel2000]

Quote:

I can't find ad8559 opamp on the internet. would u mind giving me the link to it ?   thx

sorry, i meant AD8599! you can find them at farnell or mouser, or other well known vendor

 

[amb]

AD8599's maximum output current is less than 20% that of AD8397, and it cannot swing rail-to-rail -- an important factor to make maximum use of the available battery supply voltage.  These factors make the AD8599 inferior at supporting low and high impedance headphones.