Question

Notify Me Bookmark

7.1 For the MOS amplifier of Fig. 7.2(a) with VDD = 3 V, Vt = 0.5 V, kn = 10 mA/V2, and RD = 15 kΩ, determine the coordinates of the active-region segment (AB) of the VTC [Fig. 7.2(b)]. (a) (b) Figure 7.2 (a) An NMOS amplifier and (b) its VTC. ANSWERS GIVEN IN THE BOOK: A: (0.5 V, 3 V) B: (0.69 V, 0.19 V)

7.1 For the MOS amplifier of Fig. 7.2(a) with VDD = 3 V, Vt = 0.5 V, kn = 10 mA/V2, and RD = 15 kΩ, determine the coordinates of the active-region segment (AB) of the VTC [Fig. 7.2(b)]. (a) (b) Figure 7.2 (a) An NMOS amplifier and (b) its VTC. ANSWERS GIVEN IN THE BOOK: A: (0.5 V, 3 V) B: (0.69 V, 0.19 V) 7.1 For the MOS amplifier of Fig. 7.2(a) with VDD = 3 V, Vt = 0.5 V, kn = 10 mA/V2, and RD = 15 kΩ, determine the coordinates of the active-region segment (AB) of the VTC [Fig. 7.2(b)]. (a) (b) Figure 7.2 (a) An NMOS amplifier and (b) its VTC. ANSWERS GIVEN IN THE BOOK: A: (0.5 V, 3 V) B: (0.69 V, 0.19 V)

Image text
7.1 For the MOS amplifier of Fig. 7.2(a) with V D D = 3 V , V t = 0.5 V , k n = 10 m A / V 2 , and R D = 15 k Ω , determine the coordinates of the active-region segment (AB) of the VTC [Fig. 7.2(b)].
(a) (b)
Figure 7.2 (a) An NMOS amplifier and (b) its VTC. ANSWERS GIVEN IN THE BOOK: A: ( 0.5 V , 3 V ) B: ( 0.69 V , 0.19 V )

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

It is required to bias the MOSFET amplifier shown in Fig. 1 below at point Q for which VOV,Q = 0.2 V and VDS,Q = 1 V. It is required to bias the MOS amplifier of Fig. 7.3 at point Q for which VOV = 0.2 V and VDS = 1 V. Find the required value of RD when VDD = 5 V, Vt = 0.5 V, and kn = 10 mA/V2. Also specify the coordinates of the VTC end point B. What is the small signal voltage gain of this amplifier? Assuming linear operation, what is the maximum allowable negative signal swing at the output? What is the corresponding positive peak input signal?
Solution
0 0

For an NMOS differential pair with a common-mode voltage VCM applied, as shown below. Let VDD = VSS = 1.0 V, kn’ = 0.4 mA/V2, (W/L) = 12.5, Vtn = 0.5 V, I = 0.2 mA, RD = 10 kΩ, and neglect channel-length modulation. (a) Find VOV and VGS for each transistor. (b) For VCM = +0.3 V, find VS, ID1, ID2, VD1, and VD2. (c) What is the highest value of VCM for which Q1 and Q2 remain in saturation? (d) If current source / requires a minimum voltage of 0.2 V to operate properly, what is the lowest value allowed for Vs and hence for VCM ?
Solution
1 0

An NMOS transistor in the amplifier circuit of Fig. 2 has Vt = 1 V, kn = 4 mA/V2. Assume VDD = 10 V, RG1 = 6MΩ, RG2 = 4MΩ, RS = 1kΩ, and RD = 2kΩ. (a) (10 points) Neglect the channel-length modulation and body effect. Find the voltage VGS and the drain current ID. Then, find gm. (b) (10 points) Find ro if VA = 100 V. Then, find the resistance Rod looking into the drain terminal of NMOS and the voltage gain vo/vsig.
Solution
0 0