SYSTEM AND METHOD FOR INCREASING ACCURACY OF TRANSMITTER POWER DETECTION OVER A LARGER RANGE OF OUTPUT POWER LEVELS

摘要

A system and method for increasing accuracy of transmitter power detection over a larger range of output power levels wherein a diode detector (306, 308) is followed by a series cascade of two operational amplifiers (302, 304). The first operational amplifier (302) functions as a differential/buffer amplifier, which improves temperature performance. The second operational amplifier (304) has two selectable gain factors. The output of the second operational amplifier (304) is routed to the ADC (336). A single control signal (332 is connected to the controllable switching device (330) that configures the second operational amplifier 304 for high or low gain.