I need help with output buffer

[mitgrace]

Out Bufffer ?

Dear All :

I design a buffer circuit , It need SFDR is 65dBc , and fix out common volatge about 0.55v .It is apply in Giga-ethernet . Does anyone have any comment . Thanks

 

[suria3]

Re: Out Bufffer ?

Hi,

You can refer to this paper. It explain the method to have a fix common mode voltage for a output buffer.

Title : A CMOS 10-Gb/s SONET Transceiver
IEEE Journal Of Solid State Circuits, Vol.39, No.7, July 2004

Regards,
Suria

 

[ttnknathan]

Re: Out Bufffer ?

ok, I also want to know,if it is used in a very high speed comparator and will drive a heavy load.how to do it?