I am designing a RF transmitter/ receiver system. While in receive mode (which is default mode) all the RF devices (amplifiers) of the transmitter chain need to be in off state. They will be switched ON only when in transmit mode.
Generally I use MOSFET & BJT combination to switch the DC supply for RF devices (amplfiiers).
In case of gain amplifier (low RF power devices) I want to use ADG801 or similar device because this gain amplifier needs only 150mA (max) at 5.0V. ADG801 will help me in reducing the BOM as well as occupy less space & easy functioning.
Kindly give your suggestion on this approach.
I think you should run this application past our amp group as well for feedback. what amp are you using? The application here is you want to turn on/off the supply voltage to the amp? You should also look at our load switch options that are specifically designed for switching in power supplies.