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Looking for board/design of high speed digitiser

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watertreader

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High speed digitiser

Hi,

I have a sinusoidal wave of rather high frequency of about 2Ghz. I would need to digitise it into square wave( bit level 1 only +1/-1). Is there any available board that can do this? Or if there is any simple design that can achieve this?

Thanks
 

Re: High speed digitiser

Use a limiter amplifier.
 

Re: High speed digitiser

You can use a zero-corssing detector (comparator) but I am not sure if such high speed comparators are available or not. You can also check out PLL/VCO which can take a reference input frequency of several Ghz like this collection from Analog Devices.

**broken link removed**
 

Re: High speed digitiser

you can use (push pull or) amplifier (rf amplifier / uhf amplifier ) for that use rf range transistor . followed by schmitt trigger inverter from high speed logic such as MECL , 74S , 95H etc which has less gate delay even HCL will not work ( ~ 7 ns ) i think!.


no no ,
first tell about signal whether it has fix frequency or not , fix voltage or voltage range ?

this is later part
if your amplitude is below mV then you have to amplify it.
 

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