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如何选择放大器,以及放大器外围电路的搭建,想通过这个例子好好学习放大器的设计。

Other Parts Discussed in Thread: OPA227, LMV324

达到如下四个指标

1、增益40dB,直流输入时,增益误差不大于0.1dB

2、输入0V时,输出电压漂移不大于10mV

3、输入阻抗>100k

4、放大带宽: DC~不低于50kHz

选择哪一款放大器比较适合