In this paper, a low‐noise amplifier (LNA) with process, voltage, and temperature (PVT) compensation for low power dissipation applications is designed. When supply voltage and LNA bias are close to the subthreshold, voltage has significant impact on power reduction. At this voltage level, the gain is reduced and various circuit parameters become highly sensitive to PVT variations. In the proposed LNA circuit, in order to enhance efficiency at low supply voltage, the cascade technique with g_m boosting is used. To improve circuit performance when in the subthreshold area, the forward body bias technique is used. Also, a new PVT compensator is suggested to reduce sensitivity of different circuit's parameters to PVT changes. The suggested PVT compensator employs a current reference circuit with constant output regarding temperature and voltage variations. This circuit produces a constant current by subtracting two proportional to absolute temperature currents. At a supply voltage of 0.35 V, the total power consumption is 585 μW. In different process corners, in the proposed LNA with PVT compensator, gain and noise figure (NF) variations are reduced 10.3 and 4.6 times, respectively, compared to a conventional LNA with constant bias. With a 20% deviation in the supply voltage, the gain and noise NF variations decrease 6.5 and 34 times, respectively.

中文翻译：

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物联网应用的PVT补偿式低压低功耗CMOS LNA

本文针对低功耗应用设计了具有过程，电压和温度（PVT）补偿的低噪声放大器（LNA）。当电源电压和LNA偏置接近亚阈值时，电压对功率降低有重大影响。在此电压电平下，增益降低，​​并且各种电路参数对PVT变化高度敏感。在提出的LNA电路中，为了提高低电源电压下的效率，采用g _m级联技术使用提升。为了改善在亚阈值区域时的电路性能，使用了正向偏置技术。此外，建议使用新的PVT补偿器以降低不同电路参数对PVT变化的敏感性。建议的PVT补偿器采用电流基准电路，该电路在温度和电压变化方面具有恒定的输出。该电路通过减去两个与绝对温度电流成比例的电流来产生恒定电流。在0.35 V的电源电压下，总功耗为585μW。与具有恒定偏置的传统LNA相比，在不同的工艺角中，所建议的带有PVT补偿器的LNA的增益和噪声系数（NF）变化分别降低了10.3倍和4.6倍。当电源电压有20％的偏差时，增益和噪声NF的变化分别减小6.5和34倍，