Determination of gm of the NMOS transistor gm is the Transconductance Factor of the MOS transistor,...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Determination of gm of the NMOS transistor gm is the Transconductance Factor of the MOS transistor, and it is one of the parameters of the small-signal equivalent circuits. The goal is to measure the Transconductance of an NMOS transistor in saturation (VDs > VGS-VT and VGs > VT). The gm in saturation can be written as: -- [ 8 GS JO √21pk. W L 21p Vas-V The Average Transconductance gm is basically the slope of the ID vs. VGS, when VDs is constant and MOS device is in saturation region. The slope is clearly different at different In. Hint: Use an appropriate software program, such as MICROSOFT EXCEL to examine the data provided. The slope will be determined mathematically from the data. Procedure: 1. Data has been collected using the circuit provided below. It is available to you in file Lab4_data_4p3.csv. This a csv file is based on data from a circuit like the one in Fig. 4.4. In this data VDs, constant at 5V and measure the drain current, In, while varying the gate voltage. The gate voltage VGs has been swept from 2 to 5V in steps of 0.1V. 2. Using the equation provided calculate gm at every point along the curve. 3. Plot the curve, ID vs. VGs, on a graph. Add gm vs. Vas to this plot. 5. 4. Extract the linear trend through the ID vs VGs curve and display the equation on the graph. Determine the average Transconductance gm from your calculations, and compare this to the slope determined by in the trendline equation. Report the average Transconductance. 1μF 14 VGS DO 3 ID 4 5 Ammeter DC DS VGSM VDS[MV] I(VGS)[A] 2.00E+00 5.00E+00 6.60E-05 2.10E+00 5.00E+00 9.50E-05 2.20E+00 5.00E+00 1.29E-04 2.30E+00 5.00E+00 1.69E-04 2.40E+00 5.00E+00 2.14E-04 2.50E+00 5.00E+00 2.64E-04 2.60E+00 5.00E+00 3.19E-04 2.70E+00 5.00E+00 3.80E-04 2.80E+00 5.00E+00 4.46E-04 2.90E+00 5.00E+00 5.17E-04 3.00E+00 5.00E+00 5.94E-04 3.10E+00 5.00E+00 6.76E-04 3.20E+00 5.00E+00 7.63E-04 3.30E+00 5.00E+00 8.55E-04 3.40E+00 5.00E+00 9.53E-04 3.50E+00 5.00E+00 1.06E-03 3.60E+00 5.00E+00 1.16E-03 3.70E+00 5.00E+00 1.28E-03 3.80E+00 5.00E+00 1.40E-03 3.90E+00 5.00E+00 1.52E-03 4.00E+00 5.00E+00 1.65E-03 4.10E+00 5.00E+00 1.78E-03 4.20E+00 5.00E+00 1.92E-03 4.30E+00 5.00E+00 2.07E-03 4.40E+00 5.00E+00 2.22E-03 4.50E+00 5.00E+00 2.38E-03 4.60E+00 5.00E+00 2.54E-03 4.70E+00 5.00E+00 2.70E-03 4.80E+00 5.00E+00 2.87E-03 4.90E+00 5.00E+00 3.05E-03 5.00E+00 5.00E+00 3.23E-03 Determination of gm of the NMOS transistor gm is the Transconductance Factor of the MOS transistor, and it is one of the parameters of the small-signal equivalent circuits. The goal is to measure the Transconductance of an NMOS transistor in saturation (VDs > VGS-VT and VGs > VT). The gm in saturation can be written as: -- [ 8 GS JO √21pk. W L 21p Vas-V The Average Transconductance gm is basically the slope of the ID vs. VGS, when VDs is constant and MOS device is in saturation region. The slope is clearly different at different In. Hint: Use an appropriate software program, such as MICROSOFT EXCEL to examine the data provided. The slope will be determined mathematically from the data. Procedure: 1. Data has been collected using the circuit provided below. It is available to you in file Lab4_data_4p3.csv. This a csv file is based on data from a circuit like the one in Fig. 4.4. In this data VDs, constant at 5V and measure the drain current, In, while varying the gate voltage. The gate voltage VGs has been swept from 2 to 5V in steps of 0.1V. 2. Using the equation provided calculate gm at every point along the curve. 3. Plot the curve, ID vs. VGs, on a graph. Add gm vs. Vas to this plot. 5. 4. Extract the linear trend through the ID vs VGs curve and display the equation on the graph. Determine the average Transconductance gm from your calculations, and compare this to the slope determined by in the trendline equation. Report the average Transconductance. 1μF 14 VGS DO 3 ID 4 5 Ammeter DC DS VGSM VDS[MV] I(VGS)[A] 2.00E+00 5.00E+00 6.60E-05 2.10E+00 5.00E+00 9.50E-05 2.20E+00 5.00E+00 1.29E-04 2.30E+00 5.00E+00 1.69E-04 2.40E+00 5.00E+00 2.14E-04 2.50E+00 5.00E+00 2.64E-04 2.60E+00 5.00E+00 3.19E-04 2.70E+00 5.00E+00 3.80E-04 2.80E+00 5.00E+00 4.46E-04 2.90E+00 5.00E+00 5.17E-04 3.00E+00 5.00E+00 5.94E-04 3.10E+00 5.00E+00 6.76E-04 3.20E+00 5.00E+00 7.63E-04 3.30E+00 5.00E+00 8.55E-04 3.40E+00 5.00E+00 9.53E-04 3.50E+00 5.00E+00 1.06E-03 3.60E+00 5.00E+00 1.16E-03 3.70E+00 5.00E+00 1.28E-03 3.80E+00 5.00E+00 1.40E-03 3.90E+00 5.00E+00 1.52E-03 4.00E+00 5.00E+00 1.65E-03 4.10E+00 5.00E+00 1.78E-03 4.20E+00 5.00E+00 1.92E-03 4.30E+00 5.00E+00 2.07E-03 4.40E+00 5.00E+00 2.22E-03 4.50E+00 5.00E+00 2.38E-03 4.60E+00 5.00E+00 2.54E-03 4.70E+00 5.00E+00 2.70E-03 4.80E+00 5.00E+00 2.87E-03 4.90E+00 5.00E+00 3.05E-03 5.00E+00 5.00E+00 3.23E-03
Expert Answer:
Answer rating: 100% (QA)
The image you sent shows the determination of the transconductance factor gm of an NMOS transistor T... View the full answer
Related Book For
Posted Date:
Students also viewed these accounting questions
-
A one-sided confidence interval for p can be written as p < + E or p > - E, where the margin of error E is modified by replacing z/2 with z. If Air Borealis wants to report an on-time performance of...
-
The interval (2, 5) can be written as the inequality _________.
-
(a) Show that Eq. (1630) can be written as (b) Use the binomial theorem to show that if v « c, this is approximately equal to fr=fs(1-u/c) -1/2 (c) A pilotless reconnaissance aircraft emits a...
-
What is the driving force for mountain building in the Andes?
-
Gregson Enterprises, in its first year of operations, reported the following information: Selling price per unit $ 100 Direct materials per unit 5 Direct labor per unit 1 Unit- related overhead per...
-
Have groups of students take a common consumable product and apply a fear appeal to promoting the product. Have the students critique the effort with respect to the material presented in the chapter...
-
Calculate the kinetic energy correction factor for each of the following velocity profiles for a circular pipe: (a) \(u=u_{\max }\left(1-\frac{r}{R} ight)\) (b) \(u=u_{\max...
-
Calculating NPV and IRR a project that provides annual cash flows of $24,000 for nine years costs $110,000 today is this a good project if the required return is 8 percent? What if its 20 per- cent?...
-
How does the introduction of site-specific heterogeneity within catalytic surfaces affect the activity and selectivity of heterogeneous catalysts, particularly in complex organic synthesis ?
-
In Problem 5-8, suppose that the daily demand at area 3 drops to 4 million gallons. Surplus production at refineries 1 and 2 is diverted to other distribution areas by truck. The transportation cost...
-
The following table shows the stock price and options premiums for several strike prices and expiration dates. SK Calls Puts NOV DEC JAN NOV DEC JAN 25 20 - - 7.30 .10 - .55 25 22.50 3.20 3.40 - 1.25...
-
The statement of cash flows reports three types of cash flow activities. Explain the purpose of each of the following activities or sections in the statement of cash flows and how each of them...
-
Match the terms with their correct definition. Terms 1. Accounts receivable 2. Other receivables 3. Debtor 4. Notes receivable 5. Maturity date 6. Creditor Definitions a. The party to a credit...
-
Cash flow items must be categorized into one of four categories. Identify each item as operating (O), investing (I), financing (F), or non-cash (N). If reported on the statement of cash flows, decide...
-
The following transactions of Plymouth Pharmacies occurred during 2023 and 2024: Journalize the transactions in Plymouths general journal. Explanations are not required. Round to the nearest dollar....
-
Maxwell Furniture Center had accounts receivable of $20,000 at the beginning of the year and $54,000 at year-end. Revenue for the year totaled $116,000. How much cash did the business collect from...
-
The frequency spectrum of a periodic signal x(t) is given below. Dn 0.25 1.35 1.0 0.5 0.35 20 40 60 On -45 -90- -135 -180 20 40 60 80 80 f (Hz) The shifted cosines form of x(t) is given by x(t) = Do...
-
The Zwatch Company manufactures trendy, high-quality moderately priced watches. As Zwatch's senior financial analyst, you are asked to recommend a method of inventory costing. The CFO will use your...
-
A system has a block diagram as shown in Figure P3.26. Determine a state variable model and the state transition matrix Φ(s). R(s) Msi 25 FIGURE P3.26 Feedback system
-
The story is told about the sergeant who stopped at the jewelry store every morning at nine o'clock and compared and reset his watch with the chronometer in the window. Finally, one day the sergeant...
-
Consider a system in state variable form: (a) Compute the characteristic equation using the poly function. (b) Compute the roots of the characteristic equation, and determine whether the system is...
-
Where do you start developing BOs for any particular EBT? What questions do you need to ask?
-
What are the four characteristics that a BO must satisfy to fully qualify as a BO in any particular pattern?
-
What criteria do you use to filter the list of BOs?
Study smarter with the SolutionInn App