A 1-V CMOS switched-opamp switched-capacitor pseudo-2-path filter

Cheung V.S.-L.; Luong H.C.; Wing-Hung Ki

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A 1-V CMOS switched-opamp switched-capacitor pseudo-2-path filter

机译：1V CMOS开关运算放大器开关电容器伪2路径滤波器

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A modified switched-opamp technique is proposed to enablenswitched-capacitor (SC) circuits to operate at 1 V with the opamp fullynfunctional in all phases. A 1-V fully differentialntwo-switchable-output-pair operational amplifier has been designed fornthe proposed technique, which is then employed in a 1-V fullyndifferential SC pseudo-2-path filter. Implemented in a standardnsingle-poly triple-metal 0.5-Μm CMOS process, the filter achieves ansixth-order bandpass response centered at 75 kHz with a quality factornof 45. Capacitors formed with polysilicon and highly doped n-welln(cap-well option) regions are used to achieve both good linearity andnsmall chip area. At 1-V supply, the filter obtains an output swing ofn1.2 Vpp and a dynamic range of 51 db while dissipating 310nΜW and occupying a chip area of 0.8 mm2

机译：提出了一种改进的开关运算放大器技术，以使开关电容（SC）电路能够在1 V电压下工作，并且运算放大器在所有阶段都可以完全正常工作。针对所提出的技术设计了一个1V全差分双可切换输出对运算放大器，然后将其用于1V全差分SC伪2路径滤波器。该滤波器采用标准的单晶三金属0.5μmCMOS工艺实现，可实现以75 kHz为中心的六阶带通响应，品质因数为45。电容器由多晶硅和高掺杂n阱（帽阱选项）区域形成用于获得良好的线性度和较小的芯片面积。电源为1V时，滤波器的输出摆幅为n1.2 Vpp，动态范围为51 db，而耗散310nMW的芯片面积则为0.8 mm2

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来源
《IEEE Journal of Solid-State Circuits》 |2001年第1期|p.14-22|共9页
作者
Cheung V.S.-L.; Luong H.C.; Wing-Hung Ki;
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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; Q-factor; band-pass filters; low-power electronics; switched capacitor filters; 0.5 micron; 1 V; 310 muW; 75 kHz; CMOS; chip area; dynamic range; highly doped n-well; linearity; output swing; pseudo-2-path filter; quality factor; sixth-;

机译：CMOS模拟集成电路;Q因子;带通滤波器;低功耗电子器件;开关电容器滤波器;0.5微米;1 V;310μW;75 kHz;CMOS;芯片面积;动态范围;高掺杂n阱;线性输出摆幅伪2路径滤波器品质因数第六;

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1. A 1-V 1.8-MHz CMOS switched-opamp SC filter with rail-to-rail output swing [J] . Baschirotto A., Castello R. IEEE Journal of Solid-State Circuits . 1997,第12期

机译：具有轨至轨输出摆幅的1V 1.8MHz CMOS开关运算放大器SC滤波器
2. A 1-V 100-MS/s 8-bit CMOS Switched-Opamp Pipelined ADC Using Loading-Free Architecture [J] . Wu P.Y., Cheung V.S.-L., Luong H.C. IEEE Journal of Solid-State Circuits . 2007,第4期

机译：采用免负载架构的1V 100-MS / s 8位CMOS开关运算流水线ADC
3. A 1-V 100-MS/s 8-bit CMOS Switched-Opamp Pipelined ADC Using Loading-Free Architecture [J] . Patrick Y. Wu, Vincent Sin-Luen Cheung, Howard C. Luong IEEE Journal of Solid-State Circuits . 2007,第期

机译：采用免负载架构的1V 100-MS / s 8位CMOS开关运算流水线ADC
4. A 1 V CMOS switched-opamp switched-capacitor pseudo-2-path filter [C] . Cheung, V., Luong, . 2000

机译：1 V CMOS开关运算放大器开关电容伪2路径滤波器
5. Convertisseur analogique-numerique a approximations successives operant a 1-V dans un procede CMOS submicronique. [D] . Achigui Jeazet, Hugues. 2011

机译：在亚微米CMOS工艺中，具有逐次逼近工作于1V的模数转换器。
6. A Low-Noise CMOS THz Imager Based on Source Modulation and an In-Pixel High-Q Passive Switched-Capacitor N-Path Filter [O] . Assim Boukhayma, Antoine Dupret, Jean-Pierre Rostaing, 2016

机译：基于源调制和像素内高Q无源开关电容N路径滤波器的低噪声CMOS THz成像器
7. Switched-opamp - an approach to realize full cmos switched-capacitor circuits at very-low power-supply voltages [O] . Crols J, Steyaert Michel 1994

机译：开关运算放大器-一种在非常低的电源电压下实现完整的CMOS开关电容器电路的方法

A 1-V CMOS switched-opamp switched-capacitor pseudo-2-path filter

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