For the NMOS common-source amplifier in Figure P4.15, the transistor parameters are: VTN = 0.8 V, K, = 1 mA/V², and à = 0. The circuit para- meters are Vpp = 5 V, Rs = 1 k2. Rp =4 k2. R1 = 225 k2, and R2 = 175 k2. (a) Calculate the quiescent values Ipo and Vpsg. (b) Deter- mine the small-signal voltage gain for RL = 00. (c) Determine the value of R that will reduce the small-signal voltage gain to 75 percent of the value found in part (b).

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4.15 For the NMOS common-source amplifier in Figure P4.15, the transistor
parameters are: VIN = 0.8 V, K, =I mA/V², and à = 0. The circuit para-
meters are VpD = 5 V, Rs = 1 k2, Rp = 4 k2, R = 225 k2. and
R2 = 175 k2. (a) Calculate the quiescent values Ipo and Vpso. (b) Deter-
mine the small-signal voltage gain for Ri = 00. (c) Determine the value of
RL that will reduce the small-signal voltage gain to 75 percent of the value
found in part (b).
VpD
Figure P4.15
ww
ww
Transcribed Image Text:4.15 For the NMOS common-source amplifier in Figure P4.15, the transistor parameters are: VIN = 0.8 V, K, =I mA/V², and à = 0. The circuit para- meters are VpD = 5 V, Rs = 1 k2, Rp = 4 k2, R = 225 k2. and R2 = 175 k2. (a) Calculate the quiescent values Ipo and Vpso. (b) Deter- mine the small-signal voltage gain for Ri = 00. (c) Determine the value of RL that will reduce the small-signal voltage gain to 75 percent of the value found in part (b). VpD Figure P4.15 ww ww
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