Architecture for adders in digital filters operating in mixed power modes

The push for mobility in all areas of information technology brings the need to develop systems that perform their functions even if they have limited access to power sources (batteries, solar panels, etc.). The same systems however are expected to improve their performance significantly when the power requirements are no longer a problem. This paper proposes an adder architecture for use in digital filters that operates in environments with different power requirements, based parallel prefix adders.