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介绍了五阶Σ-Δ调制型模数转换器中放大器的设计过程。引入一种新型的采用交叉耦合差分输入负电阻负载的运放
The design process of the amplifier in the fifth-order Σ-Δ modulation ADC is introduced. The introduction of a new type of cross-coupled differential input negative resistance load op amp