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首页> 外文期刊>IEEE Journal of Solid-State Circuits >A 1.2-V Highly Linear Balanced Noise-Cancelling LNA in 0.13-$mu{hbox{m}}$ CMOS
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A 1.2-V Highly Linear Balanced Noise-Cancelling LNA in 0.13-$mu{hbox{m}}$ CMOS

机译:采用0.13- $ mu {hbox {m}} $ CMOS的1.2V高度线性平衡噪声消除LNA

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摘要

In this paper, a current-to-voltage combiner is proposed to realize a highly linear, balanced noise-cancelling low-noise amplifier (LNA) capable of low-voltage operation. The current-to-voltage combiner, implemented in the load of the amplifier, converts the output currents of the parallel common-gate (CG) and common-source (CS) stages of the LNA to voltages, equalizes the amplitudes of the voltages, and combines the voltages to a single output voltage. Since only a CS stage and passive components are employed to cancel the noise and distortion due to the CG input impedance matching circuit, high linearity is achieved in spite of the low supply voltage of 1.2 V. The LNA achieves a noise figure (NF) of 3.0 dB at 2.1 GHz with an input-referred third-order intercept point (IIP3) of $+$10.5 dBm while consuming 10.5 mA from a 1.2-V supply. The amplifier is fabricated in 0.13-$mu{hbox{m}}$ CMOS process.
机译:本文提出了一种电流电压组合器,以实现一种能够在低压下工作的高度线性,平衡的消除噪声的低噪声放大器(LNA)。在放大器的负载中实现的电流电压合成器将LNA的并行共栅(CG)和共源(CS)级的输出电流转换为电压,以均衡电压幅度,并将这些电压组合成一个输出电压。由于仅使用CS级和无源元件来消除CG输入阻抗匹配电路带来的噪声和失真,因此尽管电源电压低至1.2 V,仍可实现高线性度。LNA的噪声系数(NF)为在2.1 GHz时为3.0 dB,输入参考的三阶交调点(IIP3)为$ + $ 10.5 dBm,而1.2V电源的功耗为10.5 mA。该放大器采用0.13-μmu{hbox {m}} $ CMOS工艺制造。

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