我想用做高输入阻抗电路前级同相比例。本来用opa627,但带宽不够,换用opa637(目前手头仅有此两款可选),发现产生了自激。。。(前级放大2倍)请问opa637设计注意事项是什么,该如何改进。本人是学生,各位大神见笑了。。。
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