SYSTEM AND METHOD FOR DYNAMIC POWER-OPTIMIZATION OF ANALOG ACTIVE FILTERS

摘要

Dynamic power-scaling optimizes the power consumption of analog signal processors according to the signal level. The system includes dynamic gain allocation, dynamic impedance scaling and dynamic biasing. Even though the system structure changes dynamically, there are no transients at the output of the system. Moreover, the dynamic changes are immune to the presence of interferers. It has been implemented in a fifth order channel-select filter for a zero-IF GSM receiver.