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看OPA859的开环相位裕量有65°，那在单位增益时不应该有增益隆起现象啊，应该是开环相位裕量小于60°才会有隆起。
您好， gain peaking取决于环路第2极点的位置，图中可以看出，单位增益在1g~2g之间相位大于90度，说明期间有第二极点，存在接近单位增益带宽时产生gain peaking.
