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偏置回路

Other Parts Discussed in Thread: INA128, INA118

是不是所有的运放都需要偏置回路,尤其是在多级运放级联的时候需要给每个运放提供偏置回路吗?如果是的话,一般是怎样的电路形式?我只知道在仪器仪表运放中

需要提供偏置回路(INA118/INA128等)