Question

Notify Me Bookmark

3.13 Shown in Fig. 3.66 is the circuit schematic of an amplifier stage built with a self-biased inverter. Both MOSFETs operate with source-bulk shorts. Draw the high-frequency small-signal equivalent circuit of this stage without showing ineffective components. Figure 3.66

3.13 Shown in Fig. 3.66 is the circuit schematic of an amplifier stage built with a self-biased inverter. Both MOSFETs operate with source-bulk shorts. Draw the high-frequency small-signal equivalent circuit of this stage without showing ineffective components. Figure 3.66

Image text
3.13 Shown in Fig. 3.66 is the circuit schematic of an amplifier stage built with a self-biased inverter. Both MOSFETs operate with source-bulk shorts. Draw the high-frequency small-signal equivalent circuit of this stage without showing ineffective components. Figure 3.66

Detailed Answer

0 0

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

Doubtrix Logo

Problem is not yet solved!

Click on Notify me to get email when question is answered.

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
Notify me Login Sign Up

Similar/Related Questions

In the circuit shown in Fig. 2 below, Rth = 1 kΩ, RL = 20 kΩ, VDD = VSS = 2 V and IS = 1 mA. The n-channel MOS transistor has VTN = 0.5 V, Kn = 500 μV/A2 and λ → 0. (a) Identify this circuit as a common-source, common-drain, or common-gate amplifier. (b) Draw a DC equivalent circuit of the amplifier. (c) Calculate the gm of the transistor. (d) Draw an AC equivalent of the circuit. Replace the transistor with its small-signal equivalent. (e) Find the overall small-signal voltage gain (vo/vi) of the amplifier. (f) Will the gain (vo/vi) of this amplifier be affected by Rth of the signal source? Why? (g) Find the output resistance of the amplifier seen from RL.
Solution
0 0

In the circuit shown in Fig. 2 below, Rth = 1 kΩ, RL = 20 kΩ, VDD = VSS = 2 V and IS = 1 mA. The n-channel MOS transistor has VTN = 0.5 V, Kn = 500 μV/A2 and λ → 0. (a) Identify this circuit as a common-source, common-drain, or common-gate amplifier. (b) Draw a DC equivalent circuit of the amplifier. (c) Calculate the gm of the transistor. (d) Draw an AC equivalent of the circuit. Replace the transistor with its small-signal equivalent. (e) Find the overall small-signal voltage gain (vo/vi) of the amplifier. (f) Will the gain (vo/vi) of this amplifier be affected by Rth of the signal source? Why? (g) Find the output resistance of the amplifier seen from RL.

Solution
0 0

Consider the CMOS common source amplifier circuit in Fig. 4. The transistor parameters are given as VTN = 0.5 V, VTP = −0.5 V, kn′ = 80 μA/V2, kp′ = 40 μA/V2, and λn = λp = 0.015 V −1. Assume that IBias = 0.1 mA and M2, M3 are identical. (a) Determine the small-signal parameters (gm and ro) of each transistor. (Express the transconductance gm in terms of the width-to-length ratio (W/L) without any values). (b) Draw the small-signal equivalent circuit and derive the small-signal voltage gain equation. (c) Find the width-to-length ratio of M1 such that the small-signal voltage gain is Av = −250. (d) Derive and calculate the output resistance Ro. Figure 4. CMOS common source amplifier circuit for the Question 4
Solution
0 0