Question

Notify Me Bookmark

Assume the op amp in the following circuit is ideal. a) Determine the voltage V1 b) Determine the voltage V2

Assume the op amp in the following circuit is ideal. a) Determine the voltage V1 b) Determine the voltage V2

Image text
Assume the op amp in the following circuit is ideal. a) Determine the voltage V 1 b) Determine the voltage V 2

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 following circuit, the high and low DC voltage sources are: VDD = 5 V and VSS = −5 V respectively. Consider that all three external capacitors have high values. The PMOS transistor has a threshold voltage Vt = −1 V and kp′(W/L) = kp = 0.4 mA/V2, and the NMOS transistor has a threshold voltage equal to Vt = 1 V and kn′(W/L) = 2 mA/V2. a) Determine the DC drain voltage of the PMOS transistor. b) Determine the DC source voltage of the NMOS transistor
Solution
0 0

An NMOS amplifier is shown in Figure 1. Transistor M1 is biased in the saturation region for an amplifier application. The circuit is biased with a resistive voltage divider consisting of R1 and R2, a source degeneration resistor RS, and a load resistor RD. The drain bias current for the design is ID = 500 μA and VDS is 1.625 V. The device parameters are: L = 0.5 μm, W = 10 μm, kn′ = 200 μA/V2, Vtn = 0.5 V, and λn = 0. CMOS 0.5 u Process . op . model NMOS1 nmos (KP = 200 u, VTO = 0.5, LAMBDA = 0) ;tran⁡20 m Figure 1: A NMOS amplifier circuit including a source degeneration resistor RS. a) Determine R1 and R2 for the specified bias point. b) Determine the value for RD for the specified bias point. c) Use the LTSPICE circuit template and verify your bias circuit design. Include a copy of the schematic and the dc operating point results (text log with node voltages and currents). [8] d) Use LTSPICE to evaluate the change in ID for a variation in the technology process parameter kn′. Evaluate the change in ID for a change of ±10% in kn′. Compare the relative change in ID with the relative change in kn′. What do you observe? Explain how the source degeneration resistor RS implements negative feedback which reduces the sensitivity of the bias point to changes in kn′. [8]

Solution
0 0

The following single stage differential amplifier circuit is designed for a 0.18 μm CMOS technology. Given: VDD = |VSS| = 1.5 V, |VTH| = 0.5 V, L = 0.36 μm (for all transistors), μCox = 4μCox = 400 μA/V2, and λ = 0.2 a) For a bias current of Ibias = 200 μA and over drive voltage |Vov| = 0.2 V for all transistors, determine the W/L ratios for M1, M2, M3, and M4. (10 points) b) Determine the small signal differential gain vdo/vid for this design. (10 points) Useful formulae: for n-channel MOSFET iDS = K[(vGS − VTH)vDS − 12 vDS2] triode region K = K′(WL) = μCox(WL) iDS = 12 K(vGS − VTH)2(1 + λvDS) saturation region where VA = 1 λ, and VA = VA′L, ro = 1 λID Vow = VGS − VTH overdrive voltage
Solution
0 0