"High-Speed" ADC used for single-pulse conversion

Hi guys,

I am looking for a low cost ADC for a single conversion on an external trigger (ECL logic). The trigger comes exactly at the peak amplitude of the pulse (pulse-width < 20ns). I have found the AD9070 which is unfortunately an obsolete product. The digital outputs should be TTL (not ECL) but the conversion-start trigger should be ECL, otherwise (if using an ECL to TTL converter) the maximum amplitude is not hit anymore.

Input voltage range: 0 to 2.5V or 5V

no of bits: 10 or more

the speed of the ADC is not really important as we do not need to detect all pulses (only for monitoring purposes).

any suggestion is welcome!

thx

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  • 0
    •  Analog Employees 
    on Jan 17, 2014 3:07 AM

    Hi,

    Even our pipeline ADCs have a S/H function at the front end to sample the input (I think this equates to your "freeze" term), and they are triggered by a differential sample clock input.  These inputs are typically not specified as  being logic family compatible, but a differential PECL signal is often used.  If 10 bits of resolution would be sufficient, then I would recommend looking at the AD9608. 

    www.analog.com/AD9608

    Regards,

    David

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  • 0
    •  Analog Employees 
    on Jan 17, 2014 3:07 AM

    Hi,

    Even our pipeline ADCs have a S/H function at the front end to sample the input (I think this equates to your "freeze" term), and they are triggered by a differential sample clock input.  These inputs are typically not specified as  being logic family compatible, but a differential PECL signal is often used.  If 10 bits of resolution would be sufficient, then I would recommend looking at the AD9608. 

    www.analog.com/AD9608

    Regards,

    David

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