I'm currently working on a prototype power amp using the MW7IC930N. In my ADS simulation, I used 28V for VDS1 and VDS2, and 3.16V and 2.922V for VGS1 and VGS2 respectively to get optimum performance (Gain = 35dB). The current consumption is 106mA and 286mA for VDS1 and VDS2.
However when I used the same voltages in my actual setup I'm getting a combined current of 1.1A (I'm using a single 28V supply for VDS1 and VDS2) and only a gain of 20-21 dB. Is there something that I could be missing?
I made sure that my pcb is properly grounded and that the IC has a proper heatsink below it.