运算放大器电路被广泛应用于采样保持电路和乘法型数模转换器(Multiplying-DAC,MDAC)中,是流水线式模数转换器(PipelinedADC)的核心模块之一,它的性能直接影响了流水线式模数转换器的各项关键性能指标。因此,设计实现高增益、宽带宽、低功耗的运算放大器对高转换速度、高分辨率、低功耗的流水线ADC的设计具有重要意义。为了实现高增益和输出摆幅,我们采用两级运算放大器架构,第一级采用套筒式共源共栅运算放大器,并利用增益自举技术(Gainboostingtechnique)来进一步提高增益,第二级采用MOS管负载的共源极运算放大器,来获得较大摆幅,为了获得更好的幅频特性,频率补偿采...Operational amplifier is the kernel module of MDAC in pipelined ADC, while the nonideal characteristics of the operational amplifier may have a strong impact on the function of MDAC, and whose functions determine the precision and speed of pipelined ADC. To realize higher gain and wide output swing, two-stage operational amplifiers is achieved in this paper, whose first stage is fulfilled by gain ...学位:工程硕士院系专业:信息科学与技术学院_集成电路学号:2312011115301