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How to design hign speed comparator(urgent)?

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chmhero

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regenerative comparator design

I want to design a 1GHz differential comparator ,convential comparator can not meet the speed requirement . any advice and refenrence welcome!!!
 

maybe you can try regenerative comparator with large current. but it also depend on your compared voltage difference.
 

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    chmhero

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Hi,
Two important things need to be clarified before any suggestion...
1. Technology: CMOS or BiCMOS....with feature size and fT
2. Min. Resolution.

...
by the way you can go thru the followings to look for help...

1.

2.

3.



gd luck..
sankudey
 

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    chmhero

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I have download the files mentioned above, thanks both mists and sankudey
,the goal process is 0.35um. any new problem will be post later.
 

I need a no clock high speed comparator that converter 1V peak-peak differetial data signal to rail to rail .
 

as u mentioned ur comp is static and not dynamic; simple gain stages with cross coupled load (not cross coupled driver / latch; which requires clock to be reset) may be helpful.
sankudey
 

use bipolar device maybe is good.
 

I had read some papers about CMOS latched comparators with the speed of 750MSPS in IEEE website,maybe you can search in it.
 

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