OPA4177和TLO84的相位裕度区别?同样电路结构,低零漂移OPA4177自激,在相位校正电路里面。
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你好!
你说的是OPA4277,还是OP4177?
下图是OPA4277和TL084的幅频特性和相频特性曲线,由于坐标不一样,看不出两者的差异,但OPA4277的指标看上去不差啊!
你加个补偿电容在反馈电阻上,应该没问题了。