Power amplifiers 9 CMOS integrated circuits 6 Operational amplifiers 6 Timing circuits 6 Broadband amplifiers 5 Integrated circuit design 5 Parametric amplifiers 5 Bandwidth 4 Controllers 4 Energy efficiency 4 Energy transfer 4 Fiber amplifiers 4 Fibers 4 High gain 4 Optical parametric amplifiers 4 Optical switches 4 Phase noise 4 Resonators 4 Amplified spontaneous emissions 3 Amplifiers (electronic) 3 CMOS 3 Cascode amplifiers 3 Differential amplifiers 3 Efficiency 3 Fiber lasers 3 Implantable medical devices 3 Low noise amplifier 3 Low power electronics 3 Low-power consumption 3 Ophthalmology 3