Reference no: EM131346671
Assignment: Op-Amp Noise Theory
Directions: Please answer BOTH of the questions and respond to a minimum of two of your classmates.
Question A
Discuss methods that analog signal designers can utilize to manage noise imposed on signals.
Question B
Discuss various ways in which to measure noise in MultiSIM and in physical circuits. Include a discussion of the various instruments that are useful in noise analysis
Op-Amp Noise Theory
Answer the following questions:
1. Calculate the signal to noise ratio given RMS Noise Voltage = 10mV and RMS Signal Voltage = 1V
2. Calculate ETotalRMS given e21RMS = 4V and e22RMS = 8V
3. Calculate SNR(dB) given a noise specification of 500.5nV
4. Calculate the noise specification given SNR(dB) = 150dB
3. Include all calculations in a Word document with the title: "HW7_StudentID", with your student id substituted in the file name. Show all work for full credit.
4. Upload file "HW7_StudentID"
Op-Amp Noise Theory LAB
The purpose of this lab is to learn to use Multisim to analyze noise in op-amp circuits. Students will capture screenshots of the noise spectral density curves which will provide a visual relationship of the output noise voltage versus frequency.
1. Read the document on configuring a noise analysis in Multisim. Week 7 - Configuring Noise Analysis in Multisim.pdf
https://content.grantham.edu/at/EE332/Week_7_Configuring_Noise_Analysis_in_MultiSIM.pdf
2. Following the instructions in pdf, construct the inverting Op-Amp circuit shown in figure 1.
3. Run the simulation to measure the gain of the Op-Amp and record the values of R1 and R2 and the measured gain in the table below. (Use 5% tolerance for R1 and R2)
|
Voltage gain (Av)
|
R1 (5% tolerance)
|
R2 (5% tolerance)
|
Measured Voltage gain (Av)
|
|
1
|
1K?
|
|
|
|
5
|
1K?
|
|
|
|
10
|
1K?
|
|
|
|
12
|
1K?
|
|
|
4. For the gain of 5 in the table above, run the noise analysis to obtain the results for noise voltage for R1 and R2. (Note: You need to run this noise analysis for the circuit with the gain of 5 only)
5. Plot the noise spectrum density curve across frequency range of 100 Hz to 1 GHz. (Note: If your Multisim version does not support this option then try to download the trial version of Multisim Power Pro edition from NI website).
6. Answer the following questions:
a. Does the measured gain values match the given values? If not, explain why they are different?
b. From the noise spectral density curve, explain the effect of increasing the frequency on the noise voltage.
c. Is the voltage gain of the Op-Amp dependent on frequency? Please explain.
7. Create a new word document called "Lab7_StudentID.docx" with your GID substituted into the file name.
8. Verify all calculations from analysis and measurements from simulations. Save the results along with the table and paste the screen captures in the word document. Make sure to answer the questions.
9. Upload file "Lab7_StudentID" in Blackboard.
|
Discount rate on particular money market instrument
: The annualized discount rate on a particular money market instrument is 3.75%. The face value is $200,000, and it matures in 51 days. What is its price? What would be the price if it had 71 days to maturity? Show work for best comprehension.
|
|
Pay for treasury bill that matures
: How much would you pay for a Treasury bill that matures in 182 days and pays $10,000 if you require a 1.8% discount rate? Please show work for best comprehension.
|
|
Security beta-expected return on market
: Suppose you observe the following situation: Security Beta Expected Return Pete Corp. 1.80 .190 Repete Co. 1.49 .163 Assume these securities are correctly priced. Based on the CAPM, what is the expected return on the market?
|
|
Which e-recruiting media and methods would you recommend
: Develop a recruitment strategy for the warehouse associate position for SaharaOasis, which includes the use of the Internet. This information must be presented to the Vice President (VP) of Human Resources (HR) in a PowerPoint slide presentation f..
|
|
Explain effect of increasing the frequency on noise voltage
: Does the measured gain values match the given values? If not, explain why they are different? From the noise spectral density curve, explain the effect of increasing the frequency on the noise voltage.
|
|
Provide an analysis of the ethical and legal foundations
: Provide an analysis of the ethical and legal foundations of the health care policy issue you selected. Use ethics terms, theories and apply what you have studied in prior weeks.
|
|
Develop a recruitment strategy for the warehouse
: Develop a recruitment strategy for the warehouse associate position for SaharaOasis, which includes the use of the Internet. This information must be presented to the Vice President (VP) of Human Resources (HR) in a PowerPoint slide presentation f..
|
|
Zero salvage value at the end of its life
: Although the Chen Company’s milling machine is old, it is still in relatively good working order and would last for another 10 years. It is inefficient compared to modern standards, though, and so the company is considering replacing it. It would hav..
|
|
Maintaining-sustaining ethical practices in face of internal
: Select a publicly traded firm of your choice that enjoys a large shareholder base. What challenges may this firm have encountered (or is likely to encounter) in terms of (a) incorporating ethics into financial management practices, and (b) maintainin..
|