Example 10.6 Consider an IC CS amplifier fed with a source having Rsig = 0 and having an effective load resistanceRL composed of ro of the amplifier transistor in parallel with an equal resistance ro of the current-sourceload. Let gm = 1.25 mA/V, ro = 20 k, Cgs = 20 fF, Cgd = 5 fF, and CL = 25 fF. Find AM , fH , ft, andfZ . If the amplifying transistor is to be operated at twice the original overdrive voltage while W and Lremain unchanged, by what factor must the bias current be changed? What are the new values of AM , fH , ft,and fZ ?SolutionThe low-frequency gain AM is given byAM = −gmRL = −gm(ro ro)

image 639 - Example 10.6 Consider an IC CS amplifier fed with a source having Rsig = 0 and having an effective load resistanceRL composed of ro of the amplifier transistor in parallel with an equal resistance ro of the current-sourceload. Let gm = 1.25 mA/V, ro = 20 k, Cgs = 20 fF, Cgd = 5 fF, and CL = 25 fF. Find AM , fH , ft, andfZ . If the amplifying transistor is to be operated at twice the original overdrive voltage while W and Lremain unchanged, by what factor must the bias current be changed? What are the new values of AM , fH , ft,and fZ ?SolutionThe low-frequency gain AM is given byAM = −gmRL = −gm(ro ro)
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sign up for premium and access unlimited solutions for a month at just 5$(not renewed automatically) images - Example 10.6 Consider an IC CS amplifier fed with a source having Rsig = 0 and having an effective load resistanceRL composed of ro of the amplifier transistor in parallel with an equal resistance ro of the current-sourceload. Let gm = 1.25 mA/V, ro = 20 k, Cgs = 20 fF, Cgd = 5 fF, and CL = 25 fF. Find AM , fH , ft, andfZ . If the amplifying transistor is to be operated at twice the original overdrive voltage while W and Lremain unchanged, by what factor must the bias current be changed? What are the new values of AM , fH , ft,and fZ ?SolutionThe low-frequency gain AM is given byAM = −gmRL = −gm(ro ro) already a member please login

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