其优点是可以减少使用运算放大器、电容以及开关的数量，使得SCF面积减小，便于小型化。
The advantage of the new method is that the number of ICOA, capacitor and switch and the area of SCF are all decreased.
对于便携式电子产品来说，运算放大器可算是万能的信号调节电路，因为它可以执行滤波器、放大器、电压感测器、电平移位器、缓冲器、甚至开关等多种不同功能。
Operational amplifier is the most versatile signal conditioning block in any portable system. It can be a filter, an amplifier, an voltage detector, a level shifter, a buffer or even a switch.
在具体的电路设计中，主要研究设计了一个开关电容比较器、一个两级运算放大器、数字校正电路和一个时钟提升电路。
For circuits design, the thesis designs a switch capacitor comparator circuit, a two stage amplifier, a digital correction circuit and a clock pump-up circuit.
可编程增益运算放大器的电压增益变化可以通过数字控制的开关电阻网络来实现。
The variation of voltage gain of the PGA can be realized by switched resistor-network, which is digitally controlled.
可编程增益运算放大器的电压增益变化可以通过数字控制的开关电阻网络来实现。
The variation of voltage gain of the PGA can be realized by switched resistor-network, which is digitally controlled.
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