本科毕业设计论文--cmos电路模拟与设计lab4.doc

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1、CMOS電路設計與模擬Lab4Ring-Oscillator授課老師：學生：學號：完成日期：Lab4-AnalysisofRing-Oscillator1.Ringoscillator-完成SPICE仿真，觀察5,31,101級的振盪頻率;2.以101級Ringoscillator為基礎，探究電壓（4.5V5V5.5V）和溫度（0deg.C25deg.C100deg.C）對振盪頻率fosc的影響.1.程序如下（VDD=5V,5級環形振蕩器，無溫度條件)：*F:在台作业COMSlab4.sp.MODELMNNMOS(LEVEL

2、=2LD=0.250UTOX=365E-10+NSUB=2.13818E+16VTO=0.84898KP=5.7790E-05+GAMMA=0.8905PHI=0.6U0=610.8UEXP=0.244555+UCRIT=128615DELTA=2.0298VMAX=92227.9XJ=0.250U+LAMBDA=1.956049E-02NFS=2.307838E+12NEFF=1+NSS=1.0E+12TPG=1.0RSH=22.730CGDO=3.54775E-10+CGSO=3.54775E-10CGBO=6.354506E

3、-10CJ=3.7740E-04+MJ=0.45890CJSW=5.1360E-10MJSW=0.36620PB=0.800)*********************************************************************.MODELMPPMOS(level=2LD=0.250UTOX=365E-10+NSUB=6.193910E+15VTO=-0.826989KP=2.2870E-05+GAMMA=0.4793PHI=0.6U0=241.796UEXP=0.214214+UCRIT=19

4、100.4DELTA=0.859687VMAX=47972.9XJ=0.250U+LAMBDA=5.403347E-02NFS=2.351269E+11NEFF=1.001+NSS=1.0E+12TPG=-1.0RSH=76.020CGDO=3.54775E-10+CGSO=3.54775E-10CGBO=6.981174E-10CJ=2.2624E-04+MJ=0.46650CJSW=2.3825E-10MJSW=0.24660PB=0.700)******************************************

5、***************************.subcktINVinoutM1outin00mnw=10ul=2uM2outinvddvddmpw=20ul=2u.ends*********************************************************************.globalvddvddvdd05.ICv(osc)=5x1oscN1INVx2N1N2INVx3N2N3INVx4N3N4INVx5N4oscINV********************************

6、*************************************.tran30n.meastrantosctrigv(osc)=2.5rise=2tragv(osc)=2.5rise=3.meastranfoscparam='1/tosc'.printtranv(osc)v(N1)v(N4).endLTspice模拟结果:結論：Tosc=2.58877e-008FROM4.11235e-009TO3e-008fosc:(1/tosc)=3.86285e+0072.程序如下（VDD=5V,31級環形振蕩器，無溫度條件)：*

7、F:在台作业COMSlab4-2.sp.globalvdd.MODELMNNMOS(LEVEL=2LD=0.250UTOX=365E-10+NSUB=2.13818E+16VTO=0.84898KP=5.7790E-05+GAMMA=0.8905PHI=0.6U0=610.8UEXP=0.244555+UCRIT=128615DELTA=2.0298VMAX=92227.9XJ=0.250U+LAMBDA=1.956049E-02NFS=2.307838E+12NEFF=1+NSS=1.0E+12TPG=1.0RSH=22.

8、730CGDO=3.54775E-10+CGSO=3.54775E-10CGBO=6.354506E-10CJ=3.7740E-04+MJ=0.45890CJSW=5.1360E-10MJSW=0.36620PB=0.800)***********