我用OPA695 做了10倍放大 但是从1Mhz到100Mhz放大倍数一直在缩小,而且还失真,OPA694压摆率4500应该不会失真啊!PCB和原理图在附件里Rf/Rg是750欧和39欧。求大神指点!
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附件放的是PCB,没看到原理图,把原理图贴上来看下。xuanhui xun 说:我用OPA695 做了10倍放大 但是从1Mhz到100Mhz放大倍数一直在缩小,而且还失真,OPA694压摆率4500应该不会失真啊!PCB和原理图在附件里Rf/Rg是750欧和39欧。求大神指点!