250 MHz LVDS to TTL Comparatoe

Discussion in 'The Projects Forum' started by ManuelCaveira, Jul 23, 2012.

  1. ManuelCaveira

    Thread Starter New Member

    Jul 23, 2012
    2
    0
    Hey everyone!

    I'm working on a project that involves LVDS input signals up to 250 MHz and the idea would be to use a comparator to convert to TTL signals. Ideally all works with 5V voltage suply.

    I have been looking for some components that fill these requirements but my search has not been very successful. Maybe I'm thinking in the wrong way, but I'm just looking for propagation delay on the datasheets that is below 4ns. Any suggestions?

    Thanks in advance!
     
  2. crutschow

    Expert

    Mar 14, 2008
    13,009
    3,233
    What TTL circuits work at 250MHz? :confused:
     
  3. ManuelCaveira

    Thread Starter New Member

    Jul 23, 2012
    2
    0
    The application will have input trigger signal as short as 5 ns and we need to convert to ttl to be compatible with some components.
     
  4. crutschow

    Expert

    Mar 14, 2008
    13,009
    3,233
    A LVDS line receiver such as this should work. Its maximum speed is near you limit but the only faster devices I found work on 3.3V not 5V, as shown here.
     
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