我想用一个高共模电压运放测量通过开关矩阵来测量电池组每节电压,求推荐型号。电池组是20-24串锂电池,总电压最高90V,求推荐运放
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同意XP说的,即使高共模电压运放,实际是内部集成了高精密电阻,经过电阻分压之后的输入才是运放的实际输入。
比如INA149这款,高共模电压范围可达+-275V,可以看下它的内部架构。