7.2如图P7.2所示的PMOS差分对,设Vtp=-0.8V且忽略沟道长度调制效应。(a)、当时,求Q1和Q2的Vov和VGS值,并求。2'p/5.3/kVmALWVvvGG021。和21,DDSvvvvkIvvvvvvvvVVvvLWkIVVvVVvDDSGSGGtpOVGSpOVtGSOVtGS8.1225.225.1,025.18.045.045.0)/(/0,2121'(b)、如果电流源需要的最小电压为0.5V,求共模输入范围。maxminmin2.52.50.51.250.75,(2.52)0.822.62.60.75cmCSSGGDtpCmcmcmVVVvIvVVkVvvVv7.4差分电路如图习题7.2中指定的,令求使偏置电流从差分对的一边流向另一边的的范围。在边界处,求公共源级的电压以及漏极电压。。idGGvvv12,0idvvvvVvVVVVVvvVVVvVVvVvLWkIidOVidOVtOVtSGSidtStGSOVtGStGSp63.063.021Q2Q22,,2))(/(212Q1Q12121'。,管截止时,同理可推得管,当所有电流流经即此时截止。管,当所有电流流经vvvvvvvVmAiivvvvvmkvvVVimAivvDDGSidSDDidDDtpSDDid1.1,5.243.18.063.0,7.0,0,63.025.2,1.17.025.2,8.0,0,7.063.012112121221、当。,、当7.15NMOS差分对由I=0.2mA的电流源提供偏置,电流源的输出电阻放大器的漏极电阻使用的晶体管的且ro很大。(a)如果是单端输出,求(b)如果是差分输出,且漏极电阻有1%失配,求。k100RSS。k10RD2n/3/kVmALW’。和,CMRRAAcmd。和,CMRRAAcmddB7.83154005.07.7,/5.02,/7.7bdB7.3777,/05.02/85.321:)(/77.0,26.0)/(/'或)、差分输出:(或、单端输出mAACMRRvmvRRRRAvvRgAAACMRRvvRRAvvRgAavmAVIgvLWkIVcmdDDSSDcmDmdcmdSSDcmDmdOVmnOV。VVA100,100MrkRAkRrRvvRiriRRivvAiiRiriiRRiKVLkRkIVrrvvvvvvvvAkIVrvmAmVmAVIgoICMcmEidEbbLcoiodboEboboLCoEETeioiiooidoddEAoTEm78.3]//300)[1(2(025.25]2)1([2/55.252)1(]2//[,77.96,02)1()()]2//([:,3002,525.2)1()1(,100,/4025111112112差分输出),。VVA100,1007.41考虑图P7.41所示的差分放大器,确定并画出差模半电路和共模半电路,求差模增益、差模输入电阻、共模增益和共模输入电阻。设所有晶体管的D7.62在图7.28(a)所示的有源负载差分放大器中,所有晶体管的当增益为时,求偏置电流I。。VVVmALWkA20,/2.3/2'VVvvido/80/mAvvmAVLWkIIvVVVVIVVIAIVrVIgrgAOVDOVOVOVADAOVDdDAoOVDmomd2.0)25.0(/2.3)/(225.0,2080,)2(21,2,2122'2其中D*7.68利用基本镜像电流源I设计图7.32所示的电路。要求等效互导为5mA/V。使用±5V的电源,BJT的给出完整电路和元件值并求差模输入电阻Rid,输出电阻Ro,开路电压增益Ad,输入偏置电流,共模输入范围和共模输入电阻。。VVA100,150MrrRvvvvvvvAIIkIVRvvRgAkrrrRkIVrkrRgrAIVIgoOSICmICMICmICmBBEomdooooAoeidmeTm2.30]2//)[1(,7.44,47.03.05,7.44.07.05,83.015112512/,2.37)5(5,/2000,4002///8002/,4.60)1(2,2001,250,2/minmax427.82BJT差分放大器的偏置电流源为1mA,晶体管的每个集电极电阻为10kΩ,ro非常大。放大器的输入形式是对称的,10kΩ的源电阻串接在每一个输入端。(a)画出差模半电路及其高频等效电路。(b)求低频总电压增益的值。(c)利用米勒定理求输入电容,进而估计3dB频率fH和增益带宽积。。100,5.0,600,100xTrpFCMHzfMHzkGBWkHzrrRRgCCRCfRgCCCCCrrRRpFCpFfgCCcvvvrRrrvRgvRvgvvAkgrvmAVIgbxsCmsiginHCmeqinxSsigTmixSiCmiCmiodmTEm3045222.66,452]//))][(1([2121)1(,//)(8.4,3.52)(/22.66,5,/20)(''、、