一种用于低功率2.4GHz应用的差动有源电感性能控制新方法

2010 IEEE International Conference on Integrated Circuit Design and Technology Pub Date : 2010-06-02 DOI:10.1109/ICICDT.2010.5510245

François Belmas, F. Hameau, J. Fournier

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引用次数: 1

摘要

本文提出了一种控制超低功耗(ULP)下射频放大器谐振输出负载差动有源电感(DAI)性能的方法。提出了一种不需要额外功耗和信噪比降低的线性度改善方案。对于DAI谐振频率处的给定阻抗值(对应于给定放大器增益)，强调了质量因数Q和IIP3之间的权衡。在此基础上，提出了一种考虑功耗的优化方法。在2.45GHz谐振频率下，仿真DAI的IIP3为-2.7 dBm，噪声电压密度为40nV/Hz，负载几乎为3.0kΩ。在65nm CMOS技术1V电源下，总功耗为0.8 mW，电路占地0.0012 mm²的硅面积。

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A new method for performance control of a differential active inductor for low power 2.4GHz applications

In this paper we present a new method for controlling the performance of a Differential Active Inductor (DAI) used as resonating output load of an RF amplifier and working at Ultra Low Power (ULP) consumption. A new solution is proposed for linearity improvement without extra power consumption and without SNR degradation. For a given impedance value at the resonance frequency of the DAI (corresponding to a given amplifier gain), tradeoff between quality factor Q and IIP3 is highlighted. Then, an optimization method is proposed which takes into account the power consumption. A simulated DAI presents -2.7 dBm IIP3, 40nV/Hz noise voltage density and almost 3.0kΩ load at the resonance frequency of 2.45GHz. The total power consumption is 0.8 mW under 1V power supply of a 65nm CMOS technology, and the circuit occupies 0.0012 mm² of silicon area.

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2010 IEEE International Conference on Integrated Circuit Design and Technology

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