华侨大学学报（自然科学版）2012，Vol.33Issue(1)：23-26,4.
CMOS全差分跨导运算放大器的建模与设计
Design and Modeling of a CMOS Fully Differential Transconductance Operational Amplifier
摘要
Abstract
Research of high-speed and high-gain transconductance amplifier with the structure of gain-boost, the mathematical modeling and Matlab simulation is presented for gain-boost operational amplifier. Designed operational amplifier is used in 12 bit 100 M SPSADC, and the optimal design on the auxiliary amplifier bandwidth can be obtained. Simulation results show that gain is 106 dB which increses of 55 dB if an auxiliary operational amplifier is added. Besides, if we the auxiliary operational, dominant pole is greatly reduced and non-dominant pole slightly decreases, but the addition of auxiliary amplifier does not affect the speed of the operational amplifier.关键词
运算放大器/全差分跨导/增益自举/模数转换器/互补金属氧化物半导体Key words
operational amplifier/ fully differential transconductance/ gain-boosting/ analog to digital converter/ comple-mentary metal-oxide-semiconductor分类
信息技术与安全科学引用本文复制引用
傅文渊,凌朝东..CMOS全差分跨导运算放大器的建模与设计[J].华侨大学学报（自然科学版）,2012,33(1):23-26,4.基金项目
国家自然科学基金资助项目(60772164) （60772164）
福建省自然科学基金资助项目(T0850005) （T0850005）
