📄 互补双极工艺技术的重大突破ee365.htm
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size=2>晶体管的</FONT><FONT face=Verdana color=#2b93b0
size=2>Ft</FONT><FONT color=#2b93b0 size=2>只有轻微的下降，由于 </FONT><FONT
face=Verdana color=#2b93b0 size=2>VIP10</FONT><FONT color=#2b93b0
size=2>芯片具有这些低电压交流特性，因此即使供电电压低至</FONT><FONT face=Verdana
color=#2b93b0 size=2>2.7 V</FONT><FONT color=#2b93b0
size=2>，仍可发挥卓越的性能，输出振幅接近供电电压。</FONT></P>
<P align=justify><FONT color=#2b93b0
size=2>一直以来，高频晶体管的直流电特性较弱，这是我们不得不接受的现实。采用 </FONT><FONT face=Verdana
color=#2b93b0 size=2>VIP10 </FONT><FONT color=#2b93b0
size=2>制造的晶体管由于速度较高，因此可以发挥直流电性能。</FONT><FONT face=Verdana
color=#2b93b0 size=2>NPN</FONT><FONT color=#2b93b0
size=2>的</FONT><FONT face=Verdana color=#2b93b0 size=2>b</FONT><FONT
color=#2b93b0 size=2>及前级电压分别为</FONT><FONT face=Verdana color=#2b93b0
size=2>100V</FONT><FONT color=#2b93b0 size=2>及</FONT><FONT
face=Verdana color=#2b93b0 size=2>120V</FONT><FONT color=#2b93b0
size=2>，而</FONT><FONT face=Verdana color=#2b93b0
size=2>PNP</FONT><FONT color=#2b93b0 size=2>的</FONT><FONT
face=Verdana color=#2b93b0 size=2>b</FONT><FONT color=#2b93b0
size=2>及前级电压则分别为</FONT><FONT face=Verdana color=#2b93b0
size=2>55V</FONT><FONT color=#2b93b0 size=2>及</FONT><FONT
face=Verdana color=#2b93b0 size=2>40V</FONT><FONT color=#2b93b0
size=2>。常见而有价值的直流电数值是</FONT><FONT face=Verdana color=#2b93b0
size=2>b×</FONT><FONT color=#2b93b0
size=2>前级电压，而这个乘积更可用以计算每级的增益。由于</FONT><FONT face=Verdana
color=#2b93b0 size=2>PNP</FONT><FONT color=#2b93b0
size=2>的电洞迁移率较低，因此即使</FONT><FONT face=Verdana color=#2b93b0
size=2>Ft</FONT><FONT color=#2b93b0 size=2>及击穿电压相差不远，</FONT><FONT
face=Verdana color=#2b93b0 size=2>PNP</FONT><FONT color=#2b93b0
size=2>的</FONT><FONT face=Verdana color=#2b93b0
size=2>b×Va</FONT><FONT color=#2b93b0 size=2>乘积会比 </FONT><FONT
face=Verdana color=#2b93b0 size=2>NPN</FONT><FONT color=#2b93b0
size=2>低。</FONT><FONT face=Verdana color=#2b93b0
size=2>VIP10PNP</FONT><FONT color=#2b93b0 size=2>的</FONT><FONT
face=Verdana color=#2b93b0 size=2>b×Va</FONT><FONT color=#2b93b0
size=2>达 </FONT><FONT face=Verdana color=#2b93b0
size=2>2,200V</FONT><FONT color=#2b93b0 size=2>，</FONT><FONT
face=Verdana color=#2b93b0 size=2>Bvceo</FONT><FONT color=#2b93b0
size=2>则达</FONT><FONT face=Verdana color=#2b93b0
size=2>12V</FONT><FONT color=#2b93b0 size=2>，而</FONT><FONT
face=Verdana color=#2b93b0 size=2>Ft </FONT><FONT color=#2b93b0
size=2>为</FONT><FONT face=Verdana color=#2b93b0
size=2>8GHz</FONT><FONT color=#2b93b0
size=2>。以互补双极线性集成电路工艺来说，这是符合世界水平的先进组合。</FONT></P>
<P align=justify><FONT face=Verdana color=#2b93b0
size=2>NS现正推出采用VIP10工艺技术制造的LMH高速放大器，其中，LMH6642(单组装)及LMH6643(双组装)等两款可提供满摆幅(rail
to rail）输出的单电源供应放大器芯片均具有高速(130 MHz)、低失真(-62 dBc)、低电流
(2.7mA)及极高的输出电流(100 mA)等优点。供电电压3～12V之间。</FONT></P>
<P align=justify><FONT face=Verdana color=#2b93b0
size=2>LMH6645(单组装)及 LMH6646(双组装)满摆幅(I/O)速度为80 MHz，失真为-68dBc，而
LMH6647(单组装)放大器芯片更另有微功率停机功能。供电电压2.7～12V之间。</FONT></P>
<P align=justify><FONT face=Verdana color=#2b93b0
size=2>若系统需要加设停机功能，LMH6647芯片可以在50ns内迅速启动系统，而且停机时只耗用不超过50mA电流。</FONT></P>
<P align=justify><FONT face=Verdana color=#2b93b0
size=2>单组装LMH6654及双组装 LMH6655的输入噪音电压只有 4.5nV/rtHz，带宽高达250MHz
(若G=1，则达-3dB)，而且失真也极低(以5MHz操作时只有-72dBc)。稳定时间介于14ns与 0.1%
之间。两款芯片均可利用10V供电驱动100Ω负载，并输出6.6Vpp，而每一放大器只耗用4.5 mA电流。</FONT></P>
<P><FONT face=Verdana color=#2b93b0 size=2>另一相关芯片是 LMH6672
双组装运算放大器，在作为CPE方面的 ADSL 线路驱动器功能来说是最佳的。■</FONT></P></TD></TR>
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