Abstract: A single servo control loop for amplifier gain control based on signal power change over time or system to system, having an amplifier configured to receive an input signal on an amplifier input and generate an amplified signal on an amplifier output. The differential signal generator processes the amplified signal to generate differential output signals. The single servo control loop processes the differential output signal to generates one or more gain control signals and one or more current sink control signals. A gain control system receives a gain control signal and, responsive thereto, controls a gain of one or more amplifiers. A current sink receives a current sink control signal and, responsive thereto, draws current away from the amplifier input. Changes in input power ranges generate changes in the integration level of the differential signal outputs which are detected by the control loop, and responsive thereto, the control loop dynamically adjusts the control signals.

Abstract: A single servo control loop for amplifier gain control based on signal power change over time or system to system, having an amplifier configured to receive an input signal on an amplifier input and generate an amplified signal on an amplifier output. The differential signal generator processes the amplified signal to generate differential output signals. The single servo control loop processes the differential output signal to generates one or more gain control signals and one or more current sink control signals. A gain control system receives a gain control signal and, responsive thereto, controls a gain of one or more amplifiers. A current sink receives a current sink control signal and, responsive thereto, draws current away from the amplifier input. Changes in input power ranges generate changes in the integration level of the differential signal outputs which are detected by the control loop, and responsive thereto, the control loop dynamically adjusts the control signals.

Abstract: A system and method for testing the bandwidth of an amplifier by forcing the amplifier into an oscillation with a feedback signal. The oscillation frequency reveals the amplifier bandwidth. The system comprises an amplifier an input and an output, the amplifier output providing an amplifier output signal. A feedback system is configured to receive the amplifier output signal, process an amplifier output signal to create a feedback signal, provide the feedback signal to the amplifier input. Also part of this system is a frequency divider having an input connected to the amplifier output. The frequency divider is configured to reduce the frequency of the amplifier output signal to create a reduced frequency signal and provide the reduced frequency signal to test equipment which is configured to measure the frequency of the reduced frequency signal.