• ADL5205 SPI-Interface


    ADL5205 is being used with SPI interface. It is clear that there are only four pins for SPI but there are also two more pins FA_A and FA_B that can be controlled through SPI register. So the question is when SPI is being used, should these both pins…

  • ADL5205 Output Phase shift

    Good Day,

    I am using ADL5205 in a project and noticed that in block diagram inputs and outputs indicates a 180° phase shift. Negative input gives positive output and vice versa. There is no description in datasheet. I want to confirm that it is really…

  • ADL5205 maximum gain


    I received some questions from our customer. The customer tried to simulation of ADL5205 using ADL5205 S-Parameters on ADI WEB site. But he got 20dB for maximum gain. Could you please refer attached file?

    The questions are followings,

     - Could…

  • ADL5205 input mode

     Hi, can ADL5205 be used as single-ended input mode?  

    I want to dc-coupled and single-ended input to the chip , what shell i do for the front-end of ADL5205?

    Thank you!


  • GUI software for ADL5205


    I can find command line software on the WEB site of ADL5205. But I can't find GUI software of ADL5205 on the site.

    Could you please send me the software?

    Best regards,


  • ADL5205 Gain


    I am testing the ADL5205 using SPI and when I set the gain of both stages to 26 dB, the second stage only amplifies by around 8dB. If I set the first stage to 0 dB, then the second stage amplifies at 26 dB correctly. It appears that the ADL5205…

  • ADL5205 output impedance


    I received a question about the output impedance of ADL5205. According to the datasheet of ADL5205, Differential Output Resistamce is 10 ohms. But the customer got 70 ohms for VOUTA- and VOUT+ which was calculated from ADL5205 S-Parameters usig…

  • RE: GUI program of ADL5205 evaluation board

    Hi Rob,

    Thanks for your reply.

    I am finding the GUI program of ADL5205 evaluation board.

    But, I could find only a command line program in the above product link as below.

    Could you please provide the GUI program of ADL5205 evaluation board in datasheet…

  • ADL5205 Maximum input voltage swing

    I'm looking to use the ADL5205 Dual digital VGA but am confused by the rated input swing in the datasheet.

    In Table 1 Page 3 it shows "Maximum input swing: 8 Vp-p" in the input stage section

    In Table 3 Page 6 "Absolute Maximum Ratings…

  • ADL5205 chain


    i'm going to use a single ADL5205 where the two stages will be connected (DC coupled) in a serial way in order to have more wide programmable gain. For sure i've to take care of level in the middle avoiding saturation.
    Is there any app note…