A fully balanced pseudo-differential OTA with common-mode feedforward and inherent common-mode feedback detector

Mohieldin A.N.; Sanchez-Sinencio E.; Silva-Martinez J.

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A fully balanced pseudo-differential OTA with common-mode feedforward and inherent common-mode feedback detector

机译：具有共模前馈和固有共模反馈检测器的全平衡伪差分OTA

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摘要

A pseudo-differential fully balanced fully symmetric CMOS operational transconductance amplifier (OTA) architecture with inherent common-mode detection is proposed. Through judicious arrangement, the common-mode feedback circuit can be economically implemented. The OTA achieves a third harmonic distortion of -43 dB for 900 mVpp at 30 MHz. The OTA, fabricated in 0.5-Μm CMOS process, is used to design a 100-MHz fourth-order linear phase filter. The measured filter's group delay ripple is 3% for frequencies up to 100 MHz, and the measured dynamic range is 45 dB for a total harmonic distortion of -46 dB. The filter consumes 42.9 mW per complex pole pair while operating from a ±1.65-V power supply.

机译：提出了一种具有固有共模检测功能的伪差分全平衡全对称CMOS运算跨导放大器（OTA）架构。通过明智的安排，可以经济地实现共模反馈电路。 OTA在30 MHz时对于900 mVpp达到-43 dB的三次谐波失真。采用0.5μmCMOS工艺制造的OTA用于设计100MHz四阶线性相位滤波器。对于高达100 MHz的频率，测得的滤波器群延迟纹波为3％，对于-46 dB的总谐波失真，测得的动态范围为45 dB。该滤波器的每个复极对功耗为42.9 mW，而采用±1.65 V电源供电。

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来源
《IEEE Journal of Solid-State Circuits》 |2003年第4期|p.663-668|共6页
作者
Mohieldin A.N.; Sanchez-Sinencio E.; Silva-Martinez J.;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类一般性问题;基本电子电路;
关键词
CMOS analogue integrated circuits; active filters; differential amplifiers; feedback amplifiers; feedforward; harmonic distortion; linear phase filters; operational amplifiers; 0.5 micron; 1.65 V; 100 MHz; 30 MHz; 42.9 mW; CMOS operational transconductance amplifier;

机译：CMOS模拟集成电路;有源滤波器;差分放大器;反馈放大器;前馈;谐波失真;线性相位滤波器;运算放大器;0.5微米;1.65 V;100 MHz;30 MHz;42.9 mW;CMOS运算跨导放大器;

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专利

1. A fully balanced pseudo-differential OTA with common-mode feedforward and inherent common-mode feedback detector [J] . Mohieldin A.N., Sanchez-Sinencio E., Silva-Martinez J. IEEE Journal of Solid-State Circuits . 2003,第4期

机译：具有共模前馈和固有共模反馈检测器的全平衡伪差分OTA
2. A CMOS inverter-based class-AB pseudo-differential amplifier with current-mode common-mode feedback (CMFB) [J] . Apirak Suadet, Varakorn Kasemsuwan Analog Integrated Circuits and Signal Processing . 2013,第2期

机译：具有电流模式共模反馈（CMFB）的基于CMOS反相器的AB类伪差分放大器
3. A Balanced Feedforward Current-Sense Current-Compensation Active EMI Filter for Common-Mode Noise Reduction [J] . Shin Dongil, Jeong Sangyeong, Baek Youngjin, IEEE Transactions on Electromagnetic Compatibility . 2020,第2期

机译：用于共模降噪的平衡前馈电流检测电流补偿有源EMI滤波器
4. A novel low power high CMRR pseudo-differential CMOS OTA with common-mode feedforward technique [C] . Shahabi Mehdi, Jafarnejad Roya, Sobhi Jafar, Iranian Conference on Electrical Engineering . 2015

机译：具有共模前馈技术的新型低功耗高CMRR伪差分CMOS OTA
5. A 0.5 V bulk-input OTA with improved common-mode feedback for low-frequency filtering applications. [D] . Trakimas, Michael. 2008

机译：具有改进的共模反馈的0.5 V批量输入OTA，适用于低频滤波应用。
6. Common-mode noise cancellation circuit for wearable ECG [O] . Mutsumi Noro, Daisuke Anzai, Jianqing Wang 2017

机译：穿戴式ECG的共模噪声消除电路
7. Efficient common-mode feedback circuits for pseudo-differential switched-capacitor stages [O] . L. Wu, M. Keskin, U. Moon, 2000

机译：伪差分开关电容器级的高效共模反馈电路

A fully balanced pseudo-differential OTA with common-mode feedforward and inherent common-mode feedback detector

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