按理来说应该输出Vcc/2却是300个mv差不多
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您好,
OPA838推荐使用在高增益应用。
在低增益(小于6 V/V)下工作时可能会经历低相位裕度,从而有发生振荡的风险。
另外,输出负载是500欧有点小。
在芯片产品网页有仿真模型,请评估 OPA859 data sheet, product information and support | TI.com