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Interfacing with lots of ADCs using LVDS

I need to process up to 24 ADCs, each running at 5-10MSPS. Each ADC needs to have 12 bit resolution, and the ADCs are spread over 3 PCBs. The AD9220ARS would do as a good economical 12bit ADC, but interconnecting 24 of them looks ugly. Quad or octal devices might be a way forward, but has anyone tried using LVDS interfaces to get the sheer number of interconnects down?

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  • There is something what I realy find confusing:

    Some manufacturers use MSPS for all ADCs together and others MSPS/Channel

    From your message I see, you understood 40 MSPS/Channel  :-D  which would kill anything

    Ehm no, I need two solutions with:

    1)  8-16 channels (8bit would be OK) of 2-3 MSPS/Channel

    2)  2 Very-High-Speed ADs with >200 MSPS/Channel + 1 Trigger signal

    First will be a Digital Analyzer and the seond one an OpenSource DSO

    And yes, I will look ito this FPGA stuff, but I have never used it, which mean, I need very much time.

    Greetings

    Michelle

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  • There is something what I realy find confusing:

    Some manufacturers use MSPS for all ADCs together and others MSPS/Channel

    From your message I see, you understood 40 MSPS/Channel  :-D  which would kill anything

    Ehm no, I need two solutions with:

    1)  8-16 channels (8bit would be OK) of 2-3 MSPS/Channel

    2)  2 Very-High-Speed ADs with >200 MSPS/Channel + 1 Trigger signal

    First will be a Digital Analyzer and the seond one an OpenSource DSO

    And yes, I will look ito this FPGA stuff, but I have never used it, which mean, I need very much time.

    Greetings

    Michelle

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