HMC8410 Vgg voltage range

Hi,our pcb is smaller and we don't want place negative voltage on pcb.Can I set the HMC8410 Vgg voltage to 0V?There isn't more information about the Vgg voltage range.Thanks.

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    •  Analog Employees 
    on Dec 2, 2016 2:40 AM

    Hi RFyangyang,

    I talked with someone from design who estimated that a quiescent Idd near 300 mA could result if operating with Vgg1=0V. As asingla correctly pointed out, under that condition you would probably burn up the device.

    If you are using the die version of the part then it might be possible to effectively generate a "negative" Vgg1 voltage (i.e. a Vgg1 more negative than the device ground) while using only a positive supply by "floating" the part such that Vgg1 connects to your system ground while the device ground is lifted above ground by placing it on the upper plate of a capacitor. This concept is presented in the attachment to the EZ thread linked below:  

    https://ez.analog.com/message/177921?commentID=177921#comment-177921

    Regards,

    SMcBride

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  • 0
    •  Analog Employees 
    on Dec 2, 2016 2:40 AM

    Hi RFyangyang,

    I talked with someone from design who estimated that a quiescent Idd near 300 mA could result if operating with Vgg1=0V. As asingla correctly pointed out, under that condition you would probably burn up the device.

    If you are using the die version of the part then it might be possible to effectively generate a "negative" Vgg1 voltage (i.e. a Vgg1 more negative than the device ground) while using only a positive supply by "floating" the part such that Vgg1 connects to your system ground while the device ground is lifted above ground by placing it on the upper plate of a capacitor. This concept is presented in the attachment to the EZ thread linked below:  

    https://ez.analog.com/message/177921?commentID=177921#comment-177921

    Regards,

    SMcBride

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