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模拟旋钮



汽车上有旋钮可以输出0~12V的电压,我要找一个可以输出0~12V的芯片。只是模拟旋钮,电流很小的几十毫安就可以了,当然大点更好。

主要的目的是用自动调整电压(通过IIC/SPI等总线来),来取代人工手动旋钮。帮忙推荐芯片或方案吗