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class="now_position">  <strong>您正在访问:</strong> <a href="http://www.3gbot.com/" target="_blank">网站首页</a> >> <a href="/Technology/" target="_blank">技术中?/a> >> <a href="/Article/ArticleList14/" target="_blank">技术参?/a> >> <span>正文</span></div> <!-- main_content begin--> <div id="6tcn4wch" class="maincontent"> <!-- left begin --> <div id="6tcn4wch" class="news_left"> <div id="6tcn4wch" class="brand_news_details"> <h1>电气百科:运算放大器主要的参?/h1><table style="border-bottom:1px dotted #e4e4e4;" align="center"><tr><td><div id="6tcn4wch" class="news_mes">文章来源:绿色比心情 作者:??点击?span id="HitNum"></span>?时间?span id="dTime">2019/3/4 13:19:27</span><input type="hidden" id="ID" value="100891016"/><input type="hidden" id="TypeID" value="2"/></div> </td> <td><div id="ckepop"></div></td></tr></table><div id="Content" style="display:none;">[电气百科:运算放大器主要的参数]:1.共模输入 (RINCM)该参数表?工作在线性区时,输入共模电压范围与该范围内偏?的变化量之比。运算放大器主要的参?.直流共模抑制(CMRDC)该参数用于衡量运?对作用在两个输入端的相同直流...</div><div id="6tcn4wch" class="brand_news_con"><p style="text-indent:2em;" align="center"> <img src="http://oss.3gbot.com/kindeditor/img/20190304/20190304131821_3826.png" alt="" /> </p> <p style="text-indent:2em;"> 1.共模输入 (RINCM) </p> <p style="text-indent:2em;"> 该参数表?工作在线性区时,输入共模电压范围与该范围内偏?的变化量之比?</p> <p style="text-indent:2em;"> 运算放大器主要的参数 </p> <p style="text-indent:2em;"> 2直流共模抑制(CMRDC) </p> <p style="text-indent:2em;"> 该参数用于衡量运?对作用在两个输入端的相同直流信号的抑制能力?</p> <p style="text-indent:2em;"> 3交流共模抑制(CMRAC) </p> <p style="text-indent:2em;"> CMRAC用于衡量运算放大器对作用在两个输入端的相同交流信号的抑制能力,是差模开环增益除以共模开环增益的函数?</p> <p style="text-indent:2em;">Ѷ 4增益带宽?GBW) </p> <p style="text-indent:2em;"> 增益带宽积AOL * ?是一个常量,定义在开环增益随频率变化的特性曲线中?20dB/十倍频程滚降的区域?</p> <p style="text-indent:2em;"> 5.输入偏置电流(IB) </p> <p style="text-indent:2em;"> 该参数指运算放大器工作在线性区时流入输入端的平均电流?</p> <p style="text-indent:2em;"> 6.输入偏置电流温漂(TCIB) </p> <p style="text-indent:2em;"> 该参数代表输入偏置电流在温度变化时产生的变化量。TCIB通常以pA/°C为单位表示?</p> <p style="text-indent:2em;"> 7.输入失调电流( ) </p> <p style="text-indent:2em;"> 该参数是指流入两个输入端的电流之差?</p> <p style="text-indent:2em;"> 8输入失调电流温漂(TCIOS) </p> <p style="text-indent:2em;"> 该参数代表输入失调电流在温度变化时产生的变化量。TCIOS通常以pA/°C为单位表示?</p> <p style="text-indent:2em;"> 9.差模输入电阻(RIN) </p> <p style="text-indent:2em;"> 该参数表示输入电压的变化量与相应的输入电流变化量之比,电压的变化导致电流的变化。在一个输入端测量时,另一输入端接固定的共模电压?</p> <p style="text-indent:2em;"> 10.输出阻抗(ZO) </p> <p style="text-indent:2em;"> 该参数是指运算放大器工作在线性区时,输出端的内部等效小信号阻抗?</p> <p style="text-indent:2em;"> 11.输出电压摆幅(VO) </p> <p style="text-indent:2em;"> 该参数是指输出信号不发生箝位的条件下能够达到的最大电压摆幅的峰峰值,VO一般定义在特定的负载电阻和电源电压下?</p> <p style="text-indent:2em;"> 12.功?Pd) </p> <p style="text-indent:2em;"> 表示器件在给定电源电压下所消耗的静态功率,Pd通常定义在空载情况下?</p> <p style="text-indent:2em;"> 13.电源抑制?PSRR) </p> <p style="text-indent:2em;"> 该参数用来衡量在电源电压变化时运算放大器保持其输出不变的能力,PSRR通常用电源电压变化时所导致的输入失调电压的变化量表示?</p> <p style="text-indent:2em;"> 14.转换速率/压摆?SR) </p> <p style="text-indent:2em;"> 该参数是指输出电压的变化量与发生这个变化所需时间之比的最大值。SR通常以V/μs为单位表示,有时也分别表示成正向变化和负向变化?</p> <p style="text-indent:2em;"> 15.电源电流(ICC、IDD) </p> <p style="text-indent:2em;"> 该参数是在指定电源电压下器件消耗的静态电流,这些参数通常定义在空载情况下?</p> <p style="text-indent:2em;"> 16.单位增益带宽(BW) </p> <p style="text-indent:2em;"> 该参数指开环增益大?时运算放大器的最大工作频率?</p> <p style="text-indent:2em;"> 17.输入失调电压(VOS) </p> <p style="text-indent:2em;"> 该参数表示使输出电压为零时需要在输入端作用的电压差?</p> <p style="text-indent:2em;"> 18输入失调电压温漂(TCVOS) </p> <p style="text-indent:2em;"> 该参数指温度变化引起的输入失调电压的变化,通常以μV/°C为单位表示?</p> <p style="text-indent:2em;"> 19输入 (CIN) </p> <p style="text-indent:2em;"> CIN表示运算放大器工作在线性区时任何一个输入端的等效电?另一输入端接??</p> <p style="text-indent:2em;"> 20.输入电压范围(VIN) </p> <p style="text-indent:2em;"> 该参数指运算放大器正常工?可获得预期结?时,所允许的输入电压的范围,VIN通常定义在指定的电源电压下?</p> <p style="text-indent:2em;"> 21.输入电压噪声密度(eN) </p> <p style="text-indent:2em;"> 对于运算放大器,输入电压噪声可以看作是连接到任意一个输入端的串联噪声电压源,eN通常?nV / 根号Hz 为单位表示,定义在指定频率?</p> <p style="text-indent:2em;"> 22.输入电流噪声密度(iN) </p> <p style="text-indent:2em;"> 对于运算放大器,输入电流噪声可以看作是两个噪声电流源,连接到每个输入端和公共端,通常?pA / 根号Hz 为单位表示,定义在指定频率?</p></div><div id="6tcn4wch" 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