Question

Notify Me Bookmark

D 7.103 Figure P7.103 shows a variation of the feedback-bias circuit of Fig. 7.52. Using a 3-V supply with an NMOS transistor for which Vt = 0.8 V, kn = 4 mA/V2, and λ = 0, provide a design that biases the transistor at ID = 0.5 mA, with VDS large enough to allow saturation operation for a 1-V negative signal swing at the drain. Use 13 MΩ as the largest resistor in the feedback-bias network. What values of RD, RG1, and RG2 have you chosen?

D 7.103 Figure P7.103 shows a variation of the feedback-bias circuit of Fig. 7.52. Using a 3-V supply with an NMOS transistor for which Vt = 0.8 V, kn = 4 mA/V2, and λ = 0, provide a design that biases the transistor at ID = 0.5 mA, with VDS large enough to allow saturation operation for a 1-V negative signal swing at the drain. Use 13 MΩ as the largest resistor in the feedback-bias network. What values of RD, RG1, and RG2 have you chosen?

Image text
D 7.103 Figure P7.103 shows a variation of the feedback-bias circuit of Fig. 7.52. Using a 3-V supply with an NMOS transistor for which Vt = 0.8 V, kn = 4 mA/V2, and λ = 0, provide a design that biases the transistor at ID = 0.5 mA, with VDS large enough to allow saturation operation for a 1-V negative signal swing at the drain. Use 13 MΩ as the largest resistor in the feedback-bias network. What values of RD, RG1, and RG2 have you chosen?

Detailed Answer

1 0

Please enter your email here. You will get email when this question is answered by our tutor.

Answer
Doubtrix Logo

This Problem has been solved!

You'll get a detailed, step-by-step and expert verified solution.

Join Doubtrix with 7-days free trial

  • Icon Correct & Verified Answers
  • Icon No AI-Generated Answers
  • Icon Video Solution for Difficult Questions
  • Icon Work With Experts to Reach at Correct Answers
Login Sign Up
  • Student Reviews:
  • (1)
  • Correct answers (1)
  • Complete solution (1)
  • Step-by-step solution (1)
  • Fully explained (1)

Similar/Related Questions

Problem 1. Figure shows a variation of the feedback-bias circuit. Using a 1.8−V supply with an NMOS transistor for which Vth = 0.3 V, μnCoxw L = 8 mAV2, and λ = 0, provide a design that biases the transistor at ID = 1 mA, with VDS large enough to allow saturation operation for a 0.7−V negative signal swing at the drain. Use 1 M-Ohm as the largest resistor in the feedback-bias network. What values of RS, RD, RG1, and RG2 have you chosen? Specify all resistors to two significant digits.
Solution
0 0

D *7.121 The MOSFET in the circuit of Fig. P7.121 has Vt = 0.8 V, kn = 5 mA/V2, and VA = 40 V. (a) Find the values of RS, RD, and RG so that ID = 0.4 mA, the largest possible value for RD is used while a maximum signal swing at the drain of ±0.8 V is possible, and the input resistance at the gate is 10 MΩ. Neglect the Early effect. (b) Find the values of gm and ro at the bias point. (c) If terminal Z is grounded, terminal X is connected to a signal source having a resistance of 1 MΩ, and terminal Y is connected to a load resistance of 10 kΩ, find the voltage gain from signal source to load. (d) If terminal Y is grounded, find the voltage gain from X to Z with Z open-circuited. What is the output resistance of the source follower? Figure P7.121 (e) If terminal X is grounded and terminal Z is connected to a current source delivering a signal current of 50 μA and having a resistance of 100 kΩ, find the voltage signal that can be measured at Y. For simplicity, neglect the effect of ro.D *7.121 The MOSFET in the circuit of Fig. P7.121 has Vt = 0.8 V, kn = 5 mA/V2, and VA = 40 V. (a) Find the values of RS, RD, and RG so that ID = 0.4 mA, the largest possible value for RD is used while a maximum signal swing at the drain of ±0.8 V is possible, and the input resistance at the gate is 10 MΩ. Neglect the Early effect. (b) Find the values of gm and ro at the bias point. (c) If terminal Z is grounded, terminal X is connected to a signal source having a resistance of 1 MΩ, and terminal Y is connected to a load resistance of 10 kΩ, find the voltage gain from signal source to load. (d) If terminal Y is grounded, find the voltage gain from X to Z with Z open-circuited. What is the output resistance of the source follower? Figure P7.121 (e) If terminal X is grounded and terminal Z is connected to a current source delivering a signal current of 50 μA and having a resistance of 100 kΩ, find the voltage signal that can be measured at Y. For simplicity, neglect the effect of ro.
Solution
3 0

Using a PMOS transistor with Vt = −1.5 V, k’p (W/L) = 4 mA/V2 , and λ = 0, design a circuit that resembles that in Fig. 5.24(a). Using a 10-V supply, design for a gate voltage of +6 V, a drain current of 0.5 mA, and a drain voltage of +5 V. Find the values of RS and RD. Also, find the values of the resistances in the voltage divider feeding the gate, assuming a 1-μA current in the divider.
Solution
2 0