运算放大器讨论 运算放大器带宽的讨论

运算放大器带宽的讨论








以上是LM358最大频率实测波形


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还能输入1000个字符
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一、单位增益带宽GB
        单位增益带宽定义为:运放的闭环增益为…

来自: 白小白





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					你需要多大的运算放大器带宽呢?				</h4>
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						<span class="desc oneline">12.jpg1100x848

170 KB

以下内容包括Part1~Part3三部分,帮你解决运算放大器带宽问题。

Part1

互阻抗放大器是…

来自: xuyaosong的博客










硬件十万个为什么——运放篇(三)如何估算多级放大器的频宽





08-19




2732






如果设计一个带宽为DC-100MHz的放大器,总增益为50倍,共三级放大,运算放大器的单位增益带宽为

1GHz,请问如何估算总带宽?…

来自: z00143104的专栏









考虑因素:

1.运放供电电压大小和方式选择;
2.运放封装选择;
3.运放反馈方…

来自: VAZcc 的博客









运放的参数和选择





07-27




1.8万






偏置电压和输入偏置电流

    在精密电路设计中,偏置电压是一个关键因素。对于那些经常被忽视的参数,诸如随温度而变化的偏置电压漂移和电压噪声等,也必须测定。精确的放大器要求偏置电压的漂移小于20…

来自: 学海无涯,回头是岸…






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					关于运放的压摆率(SR)和增益带宽积(GBP)				</h4>
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					<a href="https://blog.csdn.net/dxshappy/article/details/8065811?utm_source=blogxgwz10" target="_blank" title="关于运放的压摆率(SR)和增益带宽积(GBP)">
						<span class="desc oneline">压摆率在英文里是slew&nbsp;rate,简写为SR。压摆率也称转换速率。

压摆率的意思就是运算放大器输出电压的转换速率,单位有通常有V/s,V/ms和V/μs三种,它反映的是一个运算放大器在速度方面的指…

来自: dxshappy的专栏








用OP07做电压跟随器——增益带宽积怎么不可靠





05-18




2756






转自
http://bbs.ednchina.com/BLOG_ARTICLE_3019670.HTM

    首先看到OP07的带宽典型值为0.6MHz。第一感觉是就算做…

来自: 小SA滴秘密花园





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运算放大器带宽和带宽平坦度




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09-20




预算放大器性能参数扫盲,详细介绍运算放大器带宽和带宽平坦度 运算放大器带宽平坦…运放、带宽相关知识 3144 2013-12-22 Augusdi 你需要多大的运算放大器带宽呢?..


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					运算放大器的选择				</h4>
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						<span class="desc oneline">&nbsp;                         运算放大器的选择                         技术分类:                                    ...</span>
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			<a href="https://blog.csdn.net/wwt18811707971/article/details/78492480?utm_source=blogxgwz15" target="_blank" title="运放参数——压摆率(SR)">
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					运放参数——压摆率(SR)				</h4>
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						<span class="desc oneline">1.定义slew rate 就是电压转换速率(Slew Rate),简称压摆率。其定义是在1微秒时间里电压升高的幅度,就是方波来测量时就是电压由波谷升到波峰所需时间,单位通常有V/s,V/ms和V/μ...</span>
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                    						<span class="blog_title_box oneline"><a target="_blank" href="https://blog.csdn.net/wwt18811707971?utm_source=blog_pc_recommand">来自:	<span class="blog_title"> DreamRoad</span></a></span>
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					常用运算放大器,参数和选型				</h4>
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						<span class="desc oneline">标签:生活2008-07-17

13:16 星期四

常用运算放大器,参数和选型 
  
  通用廉价运算放大器。这些廉价的运放除OP07用于直流外,其它的一般不用于直流电路。 
 …

来自: wzk456的专栏





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放大器噪声分析计算





06-06




480






1.何为运放噪声
放大器的噪声模型如下

大致有三部分组成,运放电压噪声,运放电流噪声,和反馈电阻产生的噪声。三者的平方和开根号就是总噪声。在处理精密信号时,显然噪声的问题就很关键了。
2.运…

来自: leida_wt的博客








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常用运算放大芯片手册


07-26


CA3130
高输入阻抗运算放大器
CD4573
四可编程运算放大器
MC14573,
ICL7650
斩波稳零放大器
LF347
带宽四运算放大器




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运放的各个参数名词解释 (含英文)





08-10




1125






http://wenku.baidu.com/view/431ba410f18583d049645928.html

来自: one shot,one kill.




以无源高通电路为例,介绍-3dB的意义。

输出与输入只比:

Au=Uo/Ui=R/(R+1/j2PIfC)=1/(…








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OPA695 电流反馈型 运算放大器


10-28


OPA695 电流反馈型 运算放大器 1.7GHz的带宽 低功耗






<iframe id="iframeu3502456_3" src="https://pos.baidu.com/ocdm?conwid=852&amp;conhei=60&amp;rdid=3502456&amp;dc=3&amp;di=u3502456&amp;dri=3&amp;dis=0&amp;dai=8&amp;ps=11041.22216796875x398&amp;enu=encoding&amp;dcb=___adblockplus&amp;dtm=HTML_POST&amp;dvi=0.0&amp;dci=-1&amp;dpt=none&amp;tsr=0&amp;tpr=1540218980362&amp;ti=%E8%BF%90%E7%AE%97%E6%94%BE%E5%A4%A7%E5%99%A8%E5%B8%A6%E5%AE%BD%E7%9A%84%E8%AE%A8%E8%AE%BA%20-%20yuanmeixiang%E7%9A%84%E4%B8%93%E6%A0%8F%20-%20CSDN%E5%8D%9A%E5%AE%A2&amp;ari=2&amp;dbv=2&amp;drs=4&amp;pcs=1499x696&amp;pss=1498x11106&amp;cfv=0&amp;cpl=3&amp;chi=1&amp;cce=true&amp;cec=UTF-8&amp;tlm=1540219012&amp;prot=2&amp;rw=695&amp;ltu=https%3A%2F%2Fblog.csdn.net%2Fyuanmeixiang%2Farticle%2Fdetails%2F53078529&amp;ltr=https%3A%2F%2Fso.csdn.net%2Fso%2Fsearch%2Fs.do%3Fq%3DLM358&amp;ecd=1&amp;uc=1366x728&amp;pis=-1x-1&amp;sr=1366x768&amp;tcn=1540219012&amp;qn=5cd370de8dcc645c&amp;dpv=5cd370de8dcc645c&amp;tt=1540218978423.33832.33832.33833" width="852" height="60" align="center,center" vspace="0" hspace="0" scrolling="no"></iframe>





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cadence详细的仿真运算放大器方法


08-17


这个PPT详细介绍了用cadence仿真差分运算放大器的方法,以及使用verilog A的建模方法。









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运算放大器权威指南-第3版中文版


03-07


《运算放大器权威指南(第3版)》是全球领先的半导体企业TI公司的工程师多年经验结晶,从运算放大器的历史入手,重点介绍运算放大器近些年的研发成果、新出现的设计工具和技术,旨在帮助设计者快速掌握好的设计方法,为具体的工作选择最佳的放大器。





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集成运算放大器原理与应用.pdf


03-03


集成运算放大器原理与应用.pdf–1980,李清泉,黄昌宁著,关于学习集成运算放大器的很好的一本书籍,比现在的一些教学书籍强多了!





遇到运算放大器,我们一定要…

来自: 扶朕起来,我还能学习。。。。






<iframe id="iframeu3502456_5" src="https://pos.baidu.com/ocdm?conwid=852&amp;conhei=60&amp;rdid=3502456&amp;dc=3&amp;di=u3502456&amp;dri=5&amp;dis=0&amp;dai=10&amp;ps=11981x398&amp;enu=encoding&amp;dcb=___adblockplus&amp;dtm=HTML_POST&amp;dvi=0.0&amp;dci=-1&amp;dpt=none&amp;tsr=0&amp;tpr=1540218980362&amp;ti=%E8%BF%90%E7%AE%97%E6%94%BE%E5%A4%A7%E5%99%A8%E5%B8%A6%E5%AE%BD%E7%9A%84%E8%AE%A8%E8%AE%BA%20-%20yuanmeixiang%E7%9A%84%E4%B8%93%E6%A0%8F%20-%20CSDN%E5%8D%9A%E5%AE%A2&amp;ari=2&amp;dbv=2&amp;drs=4&amp;pcs=1499x696&amp;pss=1498x12046&amp;cfv=0&amp;cpl=3&amp;chi=1&amp;cce=true&amp;cec=UTF-8&amp;tlm=1540219013&amp;prot=2&amp;rw=695&amp;ltu=https%3A%2F%2Fblog.csdn.net%2Fyuanmeixiang%2Farticle%2Fdetails%2F53078529&amp;ltr=https%3A%2F%2Fso.csdn.net%2Fso%2Fsearch%2Fs.do%3Fq%3DLM358&amp;ecd=1&amp;uc=1366x728&amp;pis=-1x-1&amp;sr=1366x768&amp;tcn=1540219013&amp;qn=38d90de4788513fd&amp;dpv=38d90de4788513fd&amp;tt=1540218978423.34903.34903.34904" width="852" height="60" align="center,center" vspace="0" hspace="0" scrolling="no"></iframe>




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运算放大器权威指南 中文版(Op Amps for Everyone).pdf


12-10


中文版名称《运算放大器权威指南》
英文版名称《Op Amps for Everyone》
本资源为中文版,英文版是TI出的运算放大器的设计手册,讲得比较详细,学习后,关于运放的设计就没问题了。











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op37放大电路PCB


08-29


OP37是TI公司生产的一款带宽为63MHZ的运算放大器,低噪声,低功耗,图如下:




<iframe id="iframeu3502456_6" src="https://pos.baidu.com/ocdm?conwid=852&amp;conhei=60&amp;rdid=3502456&amp;dc=3&amp;di=u3502456&amp;dri=6&amp;dis=0&amp;dai=11&amp;ps=12453.33349609375x398&amp;enu=encoding&amp;dcb=___adblockplus&amp;dtm=HTML_POST&amp;dvi=0.0&amp;dci=-1&amp;dpt=none&amp;tsr=0&amp;tpr=1540218980362&amp;ti=%E8%BF%90%E7%AE%97%E6%94%BE%E5%A4%A7%E5%99%A8%E5%B8%A6%E5%AE%BD%E7%9A%84%E8%AE%A8%E8%AE%BA%20-%20yuanmeixiang%E7%9A%84%E4%B8%93%E6%A0%8F%20-%20CSDN%E5%8D%9A%E5%AE%A2&amp;ari=2&amp;dbv=2&amp;drs=4&amp;pcs=1499x696&amp;pss=1498x12518&amp;cfv=0&amp;cpl=3&amp;chi=1&amp;cce=true&amp;cec=UTF-8&amp;tlm=1540219015&amp;prot=2&amp;rw=695&amp;ltu=https%3A%2F%2Fblog.csdn.net%2Fyuanmeixiang%2Farticle%2Fdetails%2F53078529&amp;ltr=https%3A%2F%2Fso.csdn.net%2Fso%2Fsearch%2Fs.do%3Fq%3DLM358&amp;ecd=1&amp;uc=1366x728&amp;pis=-1x-1&amp;sr=1366x768&amp;tcn=1540219015&amp;qn=675620d07a28a5bb&amp;dpv=675620d07a28a5bb&amp;tt=1540218978423.37044.37044.37047" width="852" height="60" align="center,center" vspace="0" hspace="0" scrolling="no"></iframe>




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Altium Designer 13 的集成运算放大器的pcb库


08-08


Altium Designer 13 的集成运算放大器的pcb库,




运算放大器(Operational Amplifier,简称OP、OPA、OPAMP)是一种直流耦…

来自: pan0755的博客










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基于运算放大器和模拟集成电路的电路设计(第3版)及答案


06-30


基于运算放大器和模拟集成电路的电路设计(第3版)是国外的精品教程,适合基于运放模拟电路设计的初学者,附带每章课后习题的详细答案




<iframe id="iframeu3502456_7" src="https://pos.baidu.com/ocdm?conwid=852&amp;conhei=60&amp;rdid=3502456&amp;dc=3&amp;di=u3502456&amp;dri=7&amp;dis=0&amp;dai=12&amp;ps=12925.33349609375x398&amp;enu=encoding&amp;dcb=___adblockplus&amp;dtm=HTML_POST&amp;dvi=0.0&amp;dci=-1&amp;dpt=none&amp;tsr=0&amp;tpr=1540218980362&amp;ti=%E8%BF%90%E7%AE%97%E6%94%BE%E5%A4%A7%E5%99%A8%E5%B8%A6%E5%AE%BD%E7%9A%84%E8%AE%A8%E8%AE%BA%20-%20yuanmeixiang%E7%9A%84%E4%B8%93%E6%A0%8F%20-%20CSDN%E5%8D%9A%E5%AE%A2&amp;ari=2&amp;dbv=2&amp;drs=4&amp;pcs=1499x696&amp;pss=1498x12991&amp;cfv=0&amp;cpl=3&amp;chi=1&amp;cce=true&amp;cec=UTF-8&amp;tlm=1540219015&amp;prot=2&amp;rw=695&amp;ltu=https%3A%2F%2Fblog.csdn.net%2Fyuanmeixiang%2Farticle%2Fdetails%2F53078529&amp;ltr=https%3A%2F%2Fso.csdn.net%2Fso%2Fsearch%2Fs.do%3Fq%3DLM358&amp;ecd=1&amp;uc=1366x728&amp;pis=-1x-1&amp;sr=1366x768&amp;tcn=1540219016&amp;qn=6bd2d03030bcb9c5&amp;dpv=6bd2d03030bcb9c5&amp;tt=1540218978423.37139.37141.37141" width="852" height="60" align="center,center" vspace="0" hspace="0" scrolling="no"></iframe>





运算放大器分类 、作用及运放的选型





01-08




3318






运算放大器分类 、作用及运放的选型

http://www.eefocus.com/bbs/article_1092_195221.html 

运算放大器分类 、作…

来自: zhoucoolqi的专栏








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