半导体学报2006，Vol.27Issue(12)：2101-2105,5.
负阻负载和复制运放增益增强技术相结合的低电压低功耗高增益端到端输出范围运算放大器
A 1V,156.7μW,65.9dB Rail-to-Rail Operational Amplifier by Means of Negative Resistance Load and Replica-Amplifier Gain Enhancement
摘要
Abstract
A low-voltage,low-power,and high-gain rail-to-rail operational amplifier(OpAmp)is presented.The replica-amplifier gain enhancement technique is applied to improve the DC gain of the amplifier,which does not degrade the output swing and is very suitable for low-voltage applications.In a 0.18μm standard CMOS process,a 1V OpAmp with rail-to-rail output is designed.For a load capacitance of 5 pF,simulation by HSPICE shows that this OpAmp achieves an effective open-loop DC gain of 65.9dB,gain bandwidth of 70.28 MHz,and phase margin of 50° with a quiescent power dissipation of 156.7μW.关键词
低电压低功耗/高直流增益/复制运放增益增强技术/负阻负载Key words
low-voltage low-power/high DC gain/replica-amplifier gain enhancement/negative resistance load分类
信息技术与安全科学引用本文复制引用
刘爱荣,杨华中..负阻负载和复制运放增益增强技术相结合的低电压低功耗高增益端到端输出范围运算放大器[J].半导体学报,2006,27(12):2101-2105,5.基金项目
Project supported by the National Natural Science Foundation of China(No.90207001)国家自然科学基金资助项目(批准号:90207001) （No.90207001）
