I need to bias HMC8410 with HMC981 bias controller. However, I didn't understand how I can get -2V? (Vneg=-2,5V).
Using the 1.6MΩ resistor between VNEG and VNEGFB will set VNEG to -2V. VGATE should be set to -1.7V using the other resistor, so your value is wrong in the schematic. This resistor should…
I'm not sure I follow your question 100%. Are you trying to set the output of the HMC981 to -2V and leave it there? That would result in the amplifier being essentially disabled with very little…
Thanks for your reply. You are right, I have mistakes on the schematic. I fixed them. However I could not understand why I should set the Vgate as -1.7V.