A 0.9V 600MHz 4-order analog filter with feed-forward compensated OPAMP in CMOS 28nm

机译：0.9V 600MHz 4阶模拟滤波器，具有CMOS 28nm前馈补偿OPAMP

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In this paper a 600MHz 4 order low-pass analog filter in CMOS-28nm is presented. The transfer function is obtained with the cascade of two Active-RC Rauch biquadratic cells. Each cell is based on a novel OPAMP optimized for very high frequency operation achieving a Unity Gain Bandwidth (UGBW) > 7GHz. The developed three stage folded OPAMP exploits a feed-forward compensation technique to maximize bandwidth and an improved Common Mode Feedback Circuit (CMFB) necessary to reduce parasitic poles and to guarantee acceptable CMFB phase margin. The OPAMP is able to manage the very low V/V ratio of the 28nm process lowering its input common mode voltage in respect with input and output common mode voltage of the whole filter. The prototype consumes 11.4mW from a single 0.9V supply voltage, achieving 600MHz of bandwidth with an in-band integrated noise of 750μV. The IIP3 calculated at 400 and 450MHz is 12.5dBm.

机译：本文提出了一个CMOS-28nm的600MHz 4阶低通模拟滤波器。通过两个Active-RC Rauch双二次电池的级联获得传递函数。每个单元均基于一种新颖的OPAMP，该OPAMP已针对超高频率操作进行了优化，可实现大于7GHz的单位增益带宽（UGBW）。所开发的三级折叠式OPAMP利用前馈补偿技术来最大化带宽，并改进了共模反馈电路（CMFB），以减少寄生极点并保证可接受的CMFB相位裕量。相对于整个滤波器的输入和输出共模电压，OPAMP能够管理28nm工艺的非常低的V / V比，从而降低其输入共模电压。该原型机从0.9V单电源电压消耗的功率为11.4mW，实现了600MHz的带宽以及750μV的带内集成噪声。在400和450MHz处计算出的IIP3为12.5dBm。

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《Conference on Ph.D. Research in Microelectronics and Electronics》|2017年|265-268|共4页
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F. Ciciotti; M. De Matteis; A. Baschirotto;
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Low pass filters; Transistors; Transfer functions; Capacitors; Frequency response; Bandwidth; Feedforward neural networks;

机译：低通滤波器;晶体管;传递函数;电容器;频率响应;带宽;前馈神经网络;

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3. 0.9 V third-order 132 MHz single-OPAMP analogue filter in 28 nm CMOS [J] . M. De Matteis, A. Donno, S. DAmico, Electronics Letters . 2017,第2期

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4. A 0.9V 600MHz 4-order analog filter with feed-forward compensated OPAMP in CMOS 28nm [C] . F. Ciciotti, M. De Matteis, A. Baschirotto Conference on Ph.D. Research in Microelectronics and Electronics . 2017

机译：一个0.9V 600MHz 4阶模拟滤波器，CMOS 28nm中的前馈补偿opamp
5. A feedback control technique to compensate for the temperature dependence of the transconductance of CMOS transistors and its application in g(m)-C filters. [D] . Cui, Yuelin. 2004

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A 0.9V 600MHz 4-order analog filter with feed-forward compensated OPAMP in CMOS 28nm

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