我用OPA602搭建的一个单位增益为1的电路,我要的结果是在1MHZ内相位延迟尽量小,有人能帮忙建议下电路该怎么改么?我以前对相位没多大概念,谢谢大家
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1.可以使用带宽更高的运放。
2.可以加入超前补偿,在无线电里面叫做加重去加重电路,就是一个电阻分压,在上边分压电阻上并联一个电容,电阻的衰减用放大器补回来。