AnsweredAssumed Answered

HMC980 + HMC797

Question asked by MES on Jun 15, 2016
Latest reply on Jun 20, 2016 by kkaya

I have a customer who wants to use the HMC980 in Mode 1 to bias the HMC797 as follows:

Vdd = 11.7V

Idd = 450ma, Rsense = 332 ohms

Vgg2 = +3.5V

Vgg1 = -2.5V

Ta (MAX) = 70C

I have checked the HMC797 datasheet. I  don't see a maximum rating for the IDD current. I have checked the power dissipation and thermal resistance and confirmed the junction temperature will be below Tjmax at Ta = 70C. Do you see anything wrong with this set up? Please confirm.

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