A CMOS radio frequency low noise amplifier with high linearity and low operation voltage of less than 1.0V is presented.In this circuit,an auxiliary MOSFET in the triode region is used to boost the linearity.Simulatio...A CMOS radio frequency low noise amplifier with high linearity and low operation voltage of less than 1.0V is presented.In this circuit,an auxiliary MOSFET in the triode region is used to boost the linearity.Simulation shows that this method can boost the input-referred 3rd-order intercept point with much less power dissipation than that of traditional power/linearity tradeoff solution which pays at least 1dB power for 1dB linearity improvement.It is also shown that the size of the common-gate PMOS transistor needs to be optimized to reduce its loaded input impedance so as not to degrade the linearity due to high voltage gain at its source terminal.The simulation is carried out with TSMC 0.18μm RF CMOS technology and SpectreRF.展开更多
盛扬半导体日前推出高效率升压型DC／DC转换器HT77XX，该转换器利用CMOS工艺以及PFM、(Pulse Frequency Modulation)技术，呈现低功耗及低噪声特性。通过集成一个低阻抗的功率晶体管，HT77XX仅需外接电感、电容及二极管等三个元器件，...盛扬半导体日前推出高效率升压型DC／DC转换器HT77XX，该转换器利用CMOS工艺以及PFM、(Pulse Frequency Modulation)技术，呈现低功耗及低噪声特性。通过集成一个低阻抗的功率晶体管，HT77XX仅需外接电感、电容及二极管等三个元器件，就可以组成一个效率高达85％的DC／DC转换电路，是低成本、省空间的升压解决方案。展开更多
文摘A CMOS radio frequency low noise amplifier with high linearity and low operation voltage of less than 1.0V is presented.In this circuit,an auxiliary MOSFET in the triode region is used to boost the linearity.Simulation shows that this method can boost the input-referred 3rd-order intercept point with much less power dissipation than that of traditional power/linearity tradeoff solution which pays at least 1dB power for 1dB linearity improvement.It is also shown that the size of the common-gate PMOS transistor needs to be optimized to reduce its loaded input impedance so as not to degrade the linearity due to high voltage gain at its source terminal.The simulation is carried out with TSMC 0.18μm RF CMOS technology and SpectreRF.
文摘盛扬半导体日前推出高效率升压型DC／DC转换器HT77XX，该转换器利用CMOS工艺以及PFM、(Pulse Frequency Modulation)技术，呈现低功耗及低噪声特性。通过集成一个低阻抗的功率晶体管，HT77XX仅需外接电感、电容及二极管等三个元器件，就可以组成一个效率高达85％的DC／DC转换电路，是低成本、省空间的升压解决方案。
