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<div id=product-guid1><a href=../index.html>首页</a> > <a href=index.html>产品中心</a> > <a href=category1-1.html>模拟线性</a> > 比较器</div>

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<div id=product-0><h1>比较器（国产替代 ・ 原厂直供 ・ 引脚兼容）</h1></div>
<div id=product-2><a href="https://www.dxdz-ic.com/product/category2-2.html" target="_blank">比较器</a>是模拟电路中的“裁判员”，负责对两个模拟电压进行大小比较，并根据比较结果输出高电平或低电平的数字信号。比较器电路本质上是一个处于开环状态的差分放大器，增益极高，因此输入端极其微小的电压差就会使输出饱和到正电源轨或负电源轨。与<a href="https://www.dxdz-ic.com/product/category2-1.html" target="_blank">运算放大器</a>不同，比较器追求的不是线性放大，而是快速、果断地做出判断。为此，专用比较器在开环增益、压摆率、失调电压等指标上进行了针对性优化，并常采用集电极开路（OC）或开漏（OD）输出结构，便于与不同逻辑电平接口。<br>深圳市鼎芯电子<a href="https://www.dxdz-ic.com/" target="_blank">集成电路</a>有限公司深耕比较器领域，以<a href="https://www.dxdz-ic.com/product/LM339.html" target="_blank">LM339</a>（四路）、LM393（双路）、<a href="https://www.dxdz-ic.com/product/LM2903.html" target="_blank">LM2903</a>等经典系列为核心，提供覆盖2V-36V宽电压范围、多种封装形式的国产比较器解决方案，可直接替代进口型号，服务于电源监测、过流保护、窗口检测、波形整形及工业控制等多元场景。<br>鼎芯电子比较器的应用场景覆盖多个核心领域：<br>电源管理：过压/欠压保护、电源电压监测、电池电量检测、窗口检测器。<br>工业控制：过流保护电路、电机控制、传感器信号阈值判断、自动控制系统。<br>信号处理：过零检测、波形整形、方波生成、A/D转换器前端。<br>消费电子：报警器电路、充电器状态指示、智能设备电源管理。<br>汽车电子：车身控制模块电压监测、电池管理系统阈值检测。<br><strong>鼎芯电子比较器引脚兼容主流进口型号，欢迎免费申请样品！</strong></div>
<div id=product-0><h2>比较器-产品选型表</h2></div>
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<tr>

<td  valign="top" style="background-color:#eee;"><strong>工作电压（Vcc）(v)</strong><div style="max-height:300px; overflow-y:auto; overflow-x:hidden;">

<a href=product-list.asp?csz=2%2D36V&CategoryID=2&AttributeID=12#product rel="nofollow">2-36V</a><br>
</div>
</td>

<td  valign="top" style="background-color:#eee;"><strong>静态功耗Iq(Typ)(mA)</strong><div style="max-height:300px; overflow-y:auto; overflow-x:hidden;">

<a href=product-list.asp?csz=0%2E2mA&CategoryID=2&AttributeID=13#product rel="nofollow">0.2mA</a><br>

<a href=product-list.asp?csz=0%2E4mA&CategoryID=2&AttributeID=13#product rel="nofollow">0.4mA</a><br>

<a href=product-list.asp?csz=0%2E7mA&CategoryID=2&AttributeID=13#product rel="nofollow">0.7mA</a><br>

<a href=product-list.asp?csz=1%2E0mA&CategoryID=2&AttributeID=13#product rel="nofollow">1.0mA</a><br>

<a href=product-list.asp?csz=1%2E5mA&CategoryID=2&AttributeID=13#product rel="nofollow">1.5mA</a><br>
</div>
</td>

<td  valign="top" style="background-color:#eee;"><strong>失调电压 VOS(Typ)(mV)</strong><div style="max-height:300px; overflow-y:auto; overflow-x:hidden;">

<a href=product-list.asp?csz=1mV&CategoryID=2&AttributeID=14#product rel="nofollow">1mV</a><br>

<a href=product-list.asp?csz=2mV&CategoryID=2&AttributeID=14#product rel="nofollow">2mV</a><br>

<a href=product-list.asp?csz=5mV&CategoryID=2&AttributeID=14#product rel="nofollow">5mV</a><br>
</div>
</td>

<td  valign="top" style="background-color:#eee;"><strong>工作温度 Operation Temperature Range(℃</strong><div style="max-height:300px; overflow-y:auto; overflow-x:hidden;">

<a href=product-list.asp?csz=0%7E70%A1%E6&CategoryID=2&AttributeID=15#product rel="nofollow">0~70℃</a><br>
</div>
</td>

<td  valign="top" style="background-color:#eee;"><strong>封装</strong><div style="max-height:300px; overflow-y:auto; overflow-x:hidden;">

<a href=product-list.asp?csz=DIP%2D14+SOP%2D14&CategoryID=2&AttributeID=16#product rel="nofollow">DIP-14 SOP-14</a><br>

<a href=product-list.asp?csz=DIP%2D8+SOP%2D8&CategoryID=2&AttributeID=16#product rel="nofollow">DIP-8 SOP-8</a><br>
</div>
</td>

<td  valign="top" style="background-color:#eee;"><strong>替代</strong><div style="max-height:300px; overflow-y:auto; overflow-x:hidden;">

<a href=product-list.asp?csz=BA10393+HA17903+LM2903+NJM2903+TA75W393&CategoryID=2&AttributeID=17#product rel="nofollow">BA10393 HA17903 LM2903 NJM2903 TA75W393</a><br>

<a href=product-list.asp?csz=KA339+HA17339+NJM339+AS339+SN339&CategoryID=2&AttributeID=17#product rel="nofollow">KA339 HA17339 NJM339 AS339 SN339</a><br>

<a href=product-list.asp?csz=LM139&CategoryID=2&AttributeID=17#product rel="nofollow">LM139</a><br>

<a href=product-list.asp?csz=LM239&CategoryID=2&AttributeID=17#product rel="nofollow">LM239</a><br>

<a href=product-list.asp?csz=LM293&CategoryID=2&AttributeID=17#product rel="nofollow">LM293</a><br>

<a href=product-list.asp?csz=LM393+BA10393+HA17393+KA393+NJM393+AS393&CategoryID=2&AttributeID=17#product rel="nofollow">LM393 BA10393 HA17393 KA393 NJM393 AS393</a><br>

<a href=product-list.asp?csz=NJM2901&CategoryID=2&AttributeID=17#product rel="nofollow">NJM2901</a><br>
</div>
</td>

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</table><a name="product"></a>
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<table width="100%" border="0" cellpadding="10" cellspacing="1">
  <tr><td align="center" valign="top" bgcolor="#ffb027"><strong>图片</strong></td>
  <td align="center" valign="top" bgcolor="#ffb027"><strong>型号</strong></td>

<td align="center" bgcolor="#ffb027"><strong>工作电压（Vcc）(v)</strong></td>

<td align="center" bgcolor="#ffb027"><strong>静态功耗Iq(Typ)(mA)</strong></td>

<td align="center" bgcolor="#ffb027"><strong>失调电压 VOS(Typ)(mV)</strong></td>

<td align="center" bgcolor="#ffb027"><strong>工作温度 Operation Temperature Range(℃</strong></td>

<td align="center" bgcolor="#ffb027"><strong>封装</strong></td>

<td align="center" bgcolor="#ffb027"><strong>替代</strong></td>

  </tr>
<tr bgcolor="#f5f5f5" align="center">
<td><img src=../images/upfiles/8114480.jpg width=60 alt="LM139比较器" title="LM139比较器"></td>
<td><strong><a href="LM139.html" target="_blank" style="color:#F60">LM139</a></strong></td>

<td>2-36V</td>

<td>1.0mA</td>

<td>1mV</td>

<td>0~70℃</td>

<td>DIP-14 SOP-14</td>

<td>LM139</td>

</tr><tr bgcolor="#f5f5f5" align="center">
<td><img src=../images/upfiles/8113240.jpg width=60 alt="LM239比较器" title="LM239比较器"></td>
<td><strong><a href="LM239.html" target="_blank" style="color:#F60">LM239</a></strong></td>

<td>2-36V</td>

<td>0.2mA</td>

<td>5mV</td>

<td>0~70℃</td>

<td>DIP-14 SOP-14</td>

<td>LM239</td>

</tr><tr bgcolor="#f5f5f5" align="center">
<td><img src=../images/upfiles/8112130.jpg width=60 alt="LM339比较器" title="LM339比较器"></td>
<td><strong><a href="LM339.html" target="_blank" style="color:#F60">LM339</a></strong></td>

<td>2-36V</td>

<td>1.5mA</td>

<td>2mV</td>

<td>0~70℃</td>

<td>DIP-14 SOP-14</td>

<td>KA339 HA17339 NJM339 AS339 SN339</td>

</tr><tr bgcolor="#f5f5f5" align="center">
<td><img src=../images/upfiles/8110290.jpg width=60 alt="LM2901比较器" title="LM2901比较器"></td>
<td><strong><a href="LM2901.html" target="_blank" style="color:#F60">LM2901</a></strong></td>

<td>2-36V</td>

<td>1.5mA</td>

<td>2mV</td>

<td>0~70℃</td>

<td>DIP-14 SOP-14</td>

<td>NJM2901</td>

</tr><tr bgcolor="#f5f5f5" align="center">
<td><img src=../images/upfiles/81059180.jpg width=60 alt="LM293比较器" title="LM293比较器"></td>
<td><strong><a href="LM293.html" target="_blank" style="color:#F60">LM293</a></strong></td>

<td>2-36V</td>

<td>0.7mA</td>

<td>2mV</td>

<td>0~70℃</td>

<td>DIP-8 SOP-8</td>

<td>LM293</td>

</tr><tr bgcolor="#f5f5f5" align="center">
<td><img src=../images/upfiles/81057560.jpg width=60 alt="LM339比较器" title="LM339比较器"></td>
<td><strong><a href="LM339.html" target="_blank" style="color:#F60">LM339</a></strong></td>

<td>2-36V</td>

<td>0.4mA</td>

<td>1mV</td>

<td>0~70℃</td>

<td>DIP-8 SOP-8</td>

<td>LM393 BA10393 HA17393 KA393 NJM393 AS393</td>

</tr><tr bgcolor="#f5f5f5" align="center">
<td><img src=../images/upfiles/81056220.jpg width=60 alt="LM2903比较器" title="LM2903比较器"></td>
<td><strong><a href="LM2903.html" target="_blank" style="color:#F60">LM2903</a></strong></td>

<td>2-36V</td>

<td>0.7mA</td>

<td>1mV</td>

<td>0~70℃</td>

<td>DIP-8 SOP-8</td>

<td>BA10393 HA17903 LM2903 NJM2903 TA75W393</td>

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