在带宽限制放大器电路的设计中使用了全差分运放结构，能有效抑制电路的共模噪声。
A fully differential operational amplifier is introduced in the design of wideband limiting amplifier which can restrain the common noise effectively.
放大器的驱动能力限制了电阻的最小值，全电路噪声限制电阻最大值。
This amplifier's drive capability limits the resistor's minimum value, and the overall circuit noise limits the maximum value.
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