目前单位向用运放搭建一个能输出电压范围0-50V的电路,现在正进行选型 我看官网opa454 输出电压达到100V 电流50ma 而opa445输出电压达到80V 电流15ma 但是后者贵很多 这是什么原因呢 求大神指导 最后有一个初步的设计思想 新人第一次发帖 先谢大家指导了
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