Simple and efficient frequency compensation technique for a four-stage amplifier is presented in this study. Using a differential feedback stage and a single Miller capacitor on its output, the frequency compensation network is formed. The proposed configuration is described via matrix description. Meanwhile, an analytical transfer function is calculated. The proposed amplifier demonstrates low die occupation because of the small value of the compensation capacitor while shows acceptable frequency response regarding gain bandwidth and phase margin values. In addition, the design procedure is simple compared to the previous state-of-the-art. The HSPICE circuit simulator and TSMC 0.18 µm CMOS technology were exploited to verify theoretical presentation.

中文翻译：

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四级CMOS放大器：使用差分模块进行频率补偿

本研究提出了一种简单高效的四级放大器频率补偿技术。在其输出上使用差分反馈级和单个Miller电容器，即可形成频率补偿网络。通过矩阵描述来描述所提出的配置。同时，计算分析传递函数。所提出的放大器由于补偿电容器的值小而展示出较低的裸片占用，同时在增益带宽和相位裕度值方面显示出可接受的频率响应。此外，与先前的最新技术相比，设计过程更为简单。利用HSPICE电路仿真器和TSMC 0.18 µm CMOS技术来验证理论表示。