← 返回 JSSC 论文列表JSSC 2010第2期Analog Circuits0.13μm
Attenuation-Predistortion Linearization of CMOS OTAs With Digital Correction of Process Variations in OTA-C Filter Applications Mohamed Mobarak, Student Member , IEEE , Marvin Onabajo , Student Member , IEEE
提出一种基于衰减预失真线性化技术的CMOS OTA设计，通过数字校正实现高频线性度提升
350MHz带宽下IM3<-74dB, 70dB SNR@1MHz, 5.2mW功耗
衰减预失真线性化跨导放大器Volterra级数谐波抵消可编程电阻
▸采用匹配OTA对实现谐波抵消的鲁棒架构
▸基于Volterra级数分析的工艺变化补偿方案
▸可编程电阻延迟均衡技术抑制频率相关失真
Abstract
Mohamed Mobarak, Student Member , IEEE , Marvin Onabajo , Student Member , IEEE ,
Jose Silva-Martinez, Fellow, IEEE, and Edgar Sánchez-Sinencio , Fellow, IEEE
Abstract—An architectural attenuation-predistortion lineariza-
tion scheme for a wide range of operational transconductance
amplifiers (OTAs) is proposed and demonstrated with a transcon-
ductance-capacitor
/40G/109-C/41filter. The linearization technique
utilizes two matched OTAs to cancel output harmonics, creating
a robust architecture. C