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Problem 3. (10 Points) MOSFET Circuits The threshold voltage for each transistor shown below is VTN...
The threshold voltage of each transistor in Figure P3.5 is Vin = 0.4 V. De- termine the region of operation of the transistor in each circuit. 2.2 v = = V = *2.2 v? (b)
All letters please . In the circuit below, the NMOS transistor has the threshold voltage of V-0.5V.Assume that the MOSFET parameter VA-1/A-40V, operating at the drain voltage VD-2V. (10%) 30 RG vo l0kn a. what region is the transistor operating in? (10%) b. What is the value ofgm? (10%) c. What is the voltage gain vom? (10%)
7. For the n-channel MOSFET in the circuit below, assume that VTN-0.9V, Kn-20 * 10-4V2) and λ 0. Determine the operating region of the NMOS transistor and calculate the drain current ip 300Ω 10k2 3V
Problem 2) The transistor shown in figure below has a threshold voltage of 1.5 volts and K 0.4 mA/V2. Assuming vo is a pulse signal with a minimum of O V to a maximum of 5 V, find the voltage levels of the obtained pulse signal at the drain output vp. ΙΚΩξ D VD VoD-5V 0 S
2. The MOSFET in the amplifier below has a threshold voltage of IV and a transconductance parameter of ImA/V a) Estimate the operating point of the transistor. b) Sketch the small-signal model and determine the amplifier conf c) Determine the input resistance Rin and the voltage gain Vol Vsig d) Estimate the maximum input amplitude Vig without clipping the O +15 V 600 kΩ + Vsig 300 kΩ 1kr2吉 R, 2. The MOSFET in the amplifier below has a threshold...
For the transistor in the circuit shown below, VTN = 0.8 V, lambda = 0, and Kn = 0.25 mA/V2. Determine the small-signal voltage gain of the circuit. pр +5 V DD R 5 k R,-600 k Cci Cc2 R, 400 k T
Question 2: a) Find the value of Vgs? b) If the threshold voltage of the NMOS 0.7V, identify the region of operation for the MOSFET (i.e. Triode Saturation or Cutoff) v,= 10V SATE e) Write the formula to calculate Current (ID) for the circuit in Figure 1 Fig. 1 Question 3: a) Find the value of Vgs* b) If the threshold voltage of the NMOS 0.7V, identify the region of operation for the MOSFET (i.e. Triode, Saturation or Cutoff) c)...
Problem #5 (20 points) n the two stage cascade amplifier circuit shown below, the MOSFET has V IV and k-0s mA/ and the BIT has p 100 a) Perform the DC analysis of this circuit and based on the appropriate DC current values, calculate the small signal parameters for each transistor. b) Replace each transistor with its appropriate small signal model (neglecting ro) and draw the resulting smali- signal circuit for this amplifier circuit. HINT: You may use the T-model...
Problem 4 (25 points) Consider an n-channel MOSFET at T=300K. Assume: n polysilicon gate, t = 500 A, N = 2x105cm-3,9' =10cm-2 Ox a W = 5 um, L = lum, 4. = 1000m, = 3.9€ , € = 8.854x10 " F/cm Qc is the number of electronic charges per unit area in the oxide a) (10 points) Determine the threshold voltage. b) (5 points) Is the transistor enhancement or depletion mode? Explain. c) (10 points) Assume the transistor is...
3. A circuit for an n-channel depletion MOSFET is shown in below. The transistor parameters are V 25 V and lpss - 10 mA. Calculate the quiescent values of ID, Vps, and VGS Assume R 1 MO, R2 = 60 k 2 and Rolk. -- + 18V < R, ΟΜΩ SND 3 R 3600k