ULTRA HIGH SPEED COMPARATOR

[blastronics]

high speed comparator

I need a high speed comparator that will be driven by a Current output DAC that will transform sine wave to square wave output.

I will use this for DDS based clock generator.

Any suggested chips that will do this job?

thanks

:?::?::?:

β

 

[noiseless]

ultra high speed comparator

how high? tell the specification

 

[ocarnu]

ultra high speed dac

And what technology?

 

[blastronics]

gigahertz comparator

Most DDS have this high speed comparator built inside the chip, but the one that i will use has no buitl in comparator, that why i need an external one.

a.) Differential input with diffrential voltage of 1V pk-pk.( max)

b.) Can switch 0 to 500MHz.

c.) VCC= 3.3V up

d.) VEE=-5Vmax

e.) Vout = LVTTL/LVCMOS , (this will be the clock input of the FPGA)

 

[sunking]

dds to square wave comparator

GaAs process needed

 

[flatulent]

ultra speed comparator

https://www.onsemi.com/site/products/summary/0,4450,MC10E1651,00.html?tax=132 is the data sheet for a 1 GHz comparator with ECL outputs. You will have to do a logic translation to your final values.

 

[funster]

ultra high speed comperator

ADCMP551, ADCMP552, ADCMP553 are high speed PECL comparator.

you can use them if logic level are PECL, if you use

TTL/CMOS logic level, you can use AD8561, AD8564.


best regards

I need a high speed comparator that will be driven by a Current output DAC that will transform sine wave to square wave output.

I will use this for DDS based clock generator.

Any suggested chips that will do this job?

thanks

:?::?::?:

β

 

[adam79416]

ultra-high-speed comparators

GaAs? I dont think so. The frequency is just 500MHz