Hi,

Can you supply temperature data for the HMC635LC4  Vgsq Vs. temperature. If I set IDQ = 280 mA for at 25 C how much will VGS have to change  to maintain IDS =280 mA at 80 C. How much will VGS have to change to maintain IDS=280 MA at T=-20C?

Hello,

Could you please provide the following items for the HMC635 Eval Board PN 122763-HMC635LC4:

1.) The data sheet mentions that the PCB material should be Rogers 4350 or Arlon 25FR. Could you please tell me which one these the is actually used…

Do you have gain and P1dB data for the HMC635LC4 at 85C?  Would the part work at 90C?

I have at least 2 amplifiers in which I can't adjust IDQ to 280 mA.  On my initial bias I set Vg1/Vg2 = -2 Volts and Vd= 5V. As I increase Vg1/Vg2 to around -.25 V, Id ~120 mA . I’m afraid to bring Vg any more positive without burning out the parts.…

Hello,

could you please give me an example biasing circuit for the power amplifier HMC635LC4 with e.g. an HMC920LP5E?

I do not understand where the negative voltage for the power amplifier Vgg1 = Vgg2, which has to be in the range -2V to 0V, comes from…

I am trying to use the HMC635LC4 amplifier up to 40 GHz, and noticed the comment at the end of page 6 on the datasheet stating that a custom PCB footprint and solder stencil are required for this design.  Does anyone have any information regarding the…