30 GHz Analog to Digital signal converter

[kathalebm]

Hi All,
I would like to convert an analog signal whose frequency is as high as 30GHz to a corresponding digital signal that can be scaled down to a lower frequency.

If there is a circuit that can convert the same analog signal to voltage, I think that will be more better. Can somebody help me if has an idea. Looking forward for your response. Thanks.

Kathale

 

[hamidmoallemi]

hi
With today's technology limitations , it is impossible to make A/D with that sampling rates because of frequency limitations of CMOS and Bipolar technologies
as I know fastest ADCs work with hundreds of mega hertz sampling frequencies,
maybe some optoelectronic circuits in future would do that but they are not available now

 

[kathalebm]

Hi Hamidmoallemi,
Thanks so much for your contribution but I think I presented the question wrongly. I want to generate a square wave from a sinusoidal wave whose frequency is as high as 30GHz. Could there be a way of doing so? Please help

 

[hamidmoallemi]

Hi
I think you need a zero cross detector that is simply a comparator that compares the input voltage with 0v,
but you should search for some high frequency comaparator

 

[biff44]

Hittite Microwave Corporation - Products

HMC851LC3C