一种降低差动运算放大器幅度和相位误差的新方法

A New Method fof Redudng Magnitude and Phase Errors of the Differential Op Amp

提出了一种降低差动运算放大器幅度和相位误差的新方法。对所提出的电路进行了理论分析，导出了将误差降至最小的必要条件。对文中所提出的电路与普通差动运放电路的特性进行了比较。实验结果表明文中所提出的电路优于普通电路。

This paper describes a new method of reducing magnitudc and phase errors of the differential op amp.The theoretical analysis for the proposed circuit is presented and necessary conditions are derived to realize the min imal errors.The performance of the proposed differential op amp is then com pared with the con ventional differrntial op amp.Experimen tal results show that the proposed circuit is superior to the conventional one。