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OPA855: 电压放大器应用稳定性问题

Part Number: OPA855

按照器件手册推荐的Rf做稳定性仿真,但增益裕度一直不满足≤-10dB,想请教是哪里出了问题呢

想要实现7V/V和20V/V的电压反馈放大