HELP upon SC-CMFB: ANYBODY ANY IDEA???

[jcpu]

Hi! Need some help here, a commonly deployed CMFB circuitry:

   Vo+ ------/ ---------/ ------- Vcmref
         |   1     |    2
         |         |      
         |         |            
      1p===       ===0.5p
         |         |      
         |         |      
 Vcmfb ------/ ---------/ ------- Vbias 
         |   1     |    2      
         |         |            
      1p===       ===0.5p
         |         |      
         |         |      
   Vo- ------/ ---------/ ------- Vcmref
             1          2

where clock rate is 1MHz.
1 & 2 denotate two non-overlaped clock phase;
0.5p & 1p stands for capacitors;
My apology if this circuit still looks awkward,
I shall learn to post the circuit in GIF format.

And I need continuous time equivalent circuit for .noise simulation.

Thanks in advance!

 

[jcpu]

Re: HELP upon SC-CMFB

2 Questions:

(1) I have trouble posting attaching pictures
copy from elsewhere like MS-PAINT or PowerPoint,

and
(2) this posted circuit was also screwed-up:
when I edit it "space" was added in proper positions,
but those "space" was automatically removed during subnission.
Somebody tell me how to fix?

Thanks,

 

[Hughes]

Re: HELP upon SC-CMFB

2 Questions:

(1) I have trouble posting attaching pictures
copy from elsewhere like MS-PAINT or PowerPoint,

and
(2) this posted circuit was also screwed-up:
when I edit it "space" was added in proper positions,
but those "space" was automatically removed during subnission.
Somebody tell me how to fix?

Thanks,

To post a figure, use the "Browse ..." button below. Gif and jpg format will be fine.

To keep spaces in your inputs, use BBCode. You can click "Code" button below the "Subject" input box, enter the text, then click "Code" again. Example:

*         *
  *     *
    *  *
      *