• 关于AD9694使用问题

    为了更好的摸底使用AD9694，根据AD9694-500ebz制作了一个小DEMO板，但是自己做的这个板子数据采集回来底噪在-98dbc左右（不加模拟时钟，空采），同样情况下我用ADI的AD9694-500ebz板空采的底噪在-115dbc左右。检查了电源电压跟AD9694-500ebz的电压一致（电源噪声也在50mv左右），请问这种情况下是什么原因造成了自己做的板子AD9694底噪这么高？

  • On the use of ad9694

    hi

    In order to better use ad9694, a small demo board was made according to ad9694-500ebz. But the bottom noise of the board was about-98dbc (without analog clock and empty mining). In the same case, the bottom noise of ADI ad9694-500ebz board was about…

  • On the use of ad9694

    hi

    In order to better understand the use of ad9694, a small demo board is made according to ad9694-500ebz, but the bottom noise of the board data collection is about - 98dbc (without analog clock, air mining). In the same case, the bottom noise of air…

  • RefClk input from AD9694-500EBZ

    Hello,

    We are currently using the data capture board ADS7v2 connected to AD9694-500EBZ (new version) for some tests. According to ADI's wiki page, the RefClk is connected into J3 of ADS7 card. And followed by that, we can successfully obtain the data…

  • Can AD9694 support the simple 500[Msps] 14-bit Quad ADC operations with disabling any filtering function built-in AD9694?

    Dear all experts,

    My customer asked me about the following questions. Please advise me about your feedback on the following questions.

     

    Q1:

    Can my customer bypass all bandwidth limitation filters implemented in the DDC block of AD9694?

    Or

    Can my…

  • RE: AD9694 SYSREF signal doesn't work

    the datasheet clearly explains how to arm sysref and operate the AD9694 in subclass1. 

  • RE: AD9694-500EBZ, old vs new

    we are now only shipping the new version. details here : EVALUATING THE AD9694 QUAD CHANNEL 500 MSPS ADC [Analog Devices Wiki]

  • RE: AD9694-500 EBZ Gerbers

    09-044237-01B.zip

  • RE: ADC driver for AD9694

    the anti-aliasing filter can be redesigned to suit your application needs. see this example below

    CN0227 Circuit Note | Analog Devices

  • RE: AD9694: Input Common Mode

    Hi,

    AC coupling is default. no need to change anything. 

    please see datasheet. the section clearly states that these registers need to be written to only when using dc-coupling.