TUMA11: Using PA Biasing Controllers to Reduce Bias Circuit Complexity

Abstract
RF PAs require precision biasing on either their drain or gate to optimize performance, efficiency, and reliability. A large amount of engineering manpower and board space goes into designing the biasing circuitry. Comprehensive control and protection of the PA involve implementing power sequencing, voltage and current monitoring, and precise gate bias voltages. TI PA biasing controllers significantly reduce complexity of board circuitry through integrating DACs and ADCs, along with other desirable features, in small packages.