Question

Notify Me Bookmark

Consider the amplifier circuit shown below. Assuming RSi = 0, determine the transconductance of the transistor, gm, in mA/ V if the small-signal voltage gain is Av = -10, ro = 106 kΩ, and RD = 9.6 kΩ. Give your answer to one decimal point.

Consider the amplifier circuit shown below. Assuming RSi = 0, determine the transconductance of the transistor, gm, in mA/ V if the small-signal voltage gain is Av = -10, ro = 106 kΩ, and RD = 9.6 kΩ. Give your answer to one decimal point.

Image text
Consider the amplifier circuit shown below. Assuming RSi = 0, determine the transconductance of the transistor, gm, in mA/ V if the small-signal voltage gain is Av = -10, ro = 106 kΩ, and RD = 9.6 kΩ. Give your answer to one decimal point.

Explanation & Steps

The given circuit a common-source amplifier. Input signal is applied at gate terminal and output is taken from drain terminal. Resistance of input signal is zero, thus it can be short-circuited. Draw the small-signal equivalent model and solve it to find out the ratio of output voltage and input voltage i.e. voltage gain. The obtained formula can be used to determine transconductance of the MOSFET.

Detailed Answer

2 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:
  • (2)
  • Correct answers (2)
  • Complete solution (2)
  • Step-by-step solution (2)
  • Fully explained (2)

Similar/Related Questions

The parameters of the transistor in the circuit shown below are Vth = 0.9 V, kn = 1/2kn’(W/L) = 0.85 mA/V2 , and λ = 0.01V-1 . Determine the small-signal voltage gain of the amplifier circuit when ID = 0.1 mA, RD = 6.43 kΩ, and RS = 38.6 kΩ. Give your answer to two decimal points.
Solution
0 0

The parameters of the transistor in the circuit shown below are Vth = 0.9 V, kn = 12 kn′(W/L) = 0.85 mA/V2, and λ = 0.03 V−1. Determine the small-signal voltage gain of the amplifier circuit when ID = 0.3 mA, RD = 6.43 kΩ, and RS = 38.6 kΩ. Give your answer to two decimal points.
Solution
0 0

For the circuit shown below, let's assume M1 and M2 are operating in saturation mode, with a drain current of ID = 198 μA. We further assume that the transconductance for M1 is gm1 = 3.3 mS and for M2 it is gm2 = 3.9 mS. The channel-length modulation parameters for the two transistors are λ1 = 0.026 V-1 and λ2 = 0.017 V-1. What is the small-signal voltage gain of the circuit? Give your answer to 0 decimal place.
Solution
3 0