RF peak-to-peak detector with wide dynamic range
A temperature and process compensated voltage controlled amplifier circuit achieves a prescribed power level over a wide dynamic range. The amplifier circuit has a power amplifier and a peak-to-peak detector that are integrated parts of an integrated circuit. The power amplifier outputs an amplified RF signal having an amplified peak-to-peak voltage amplitude. The peak-to-peak detector receives the amplified RF signal and generates a detector output signal having a direct current voltage component that is substantially proportional to the amplified peak-to-peak voltage amplitude. The power amplifier receives the detector output signal and uses it to achieve an amplified peak-to-peak voltage amplitude corresponding to a prescribed power level. The peak-to-peak detector includes transistors with identical threshold voltages. Despite temperature and process variations, the direct current voltage component of the detector output signal does not vary with temperature and process variations with respect to the ground voltage of a battery.
Agilent Technologies, Inc
H
H03G
inventional
Justin Walter Bartholomeus Hendrik Ray Myron
Clark Jansen Parkhurst