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OPA4192运放开环输出阻抗和闭环输出阻抗请教

Other Parts Discussed in Thread: OPA4192

hi,

  我在spec里面看到OPA4192运放开环输出阻抗是375ohm,但是没有标注闭环输出阻抗,请问这个芯片的闭环输出阻抗是多少呢?

怎么去计算闭环的阻抗?闭环和开环输出阻抗有啥联系吗?

多谢!