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页数:12页
时间:2019-08-05
《跨阻型放大器应用指南》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、ApplicationReportZHCA479–September2012跨阻型放大器应用指南毛华平德州仪器公司(TI)高速应用工程师摘要本文简要介绍了Decompensate型跨阻型放大器的应用常见问题.Abstract:thisarticlesimplyintroducethenormalapplicationofunitygainstableTIAanddecompensatedTIA,andthenormalissuemetintherealapplication.Keywords:GBP(Gainband
2、widthproduct),decompensated,stability,noise,CF(feedbackcapacitor),overshoot.Contents1引言..................................................................................................................................22TIA应用概论...................................
3、..................................................................................23TIA应用指标分析..............................................................................................................33.1带宽计算33.2噪声计算64实际应用中的常见问题..............................
4、........................................................................64.1振荡64.2overshoot95总结..................................................................................................................................116.参考资料............................
5、...............................................................................................11FiguresFigure1decomp和单位增益稳定运放波特图....................................................................................2Figure2TIA光电检测电路...............................
6、...................................................................................3Figure3TIA用于DAC输出电流检测电路...........................................................................................3Figure4未补偿时的波特图...............................................
7、....................................................................4Figure5补偿后的波特图.......................................................................................................................5Figure6常用TIA增益与带宽关系.......................................
8、.................................................................6Figure7未加补偿的20k放大电路........................................................................................
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