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求一个-10-10V到-50-50mA转换方案

Other Parts Discussed in Thread: LMP7704

求一个-10-10V到-50-50mA转换电路,精度要求0.5%,负载为浮地形式。

看到目前使用运放+mos管的多些,但是好像都是单极性的,双极性电流输出的很少,现在比较困惑,求大神支招,谢谢了