• RE: AD7293 Vrefout issue

    Hello Valerie,

    By Vrefad I mean the ref adc, pin 42 of AD7293. Here is the schematic related to AD7293 that I'm using:

    It is not the evaluation board, it's custom made.

    Regards,

    Sultza

  • AD7293 pulse mode

    Hello. I am designing pulsed power amplifier with 4 GaN HEMTs. I want to use AD7293 current controller in closed-loop mode and generate pulse sequences by changing HEMT's gate voltages. Pulse characteristics: rise/fall time < 2 us and pulse width = 100…

  • RE: 大家好,有个AD9273的问题想请教一下

    不能直接接AD7293,否则会损坏芯片,

    所以必须需要使用 电平转换芯片

    可以看一下ADG3308

    www.analog.com/cn/products/interface-isolation/level-translators/adg3308.html

  • RE: Bias-sequencer. Turn off/on RF.

    Hi drstein,

    Unfortunately, HMC981 cannot support the biasing requirement of GaN amplifiers, where around 28V Vdd and -4V Vgg is required. Please refer to the application note AN-1363 for further details on bias controllers.

    For now we do not have an…

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