EEE507: MEASUREMENT AND INSTRUMENTATION II LECTURE NOTES ADCs AND DACs By: Olorunniwo O. Dept. of Electronic & Electrical Engineering Obafemi Awolowo University Ile-Ife Page. | 1 1. ADCs and DACs • Basic DAC Architecture: -binary weighted; -R-2R ladder • Basic ADC: -flash; -dual-slope ; and -successive approximation • Sample and Hold Circuit • Aperture Error • ADC/DAC specifications: -INL; -DNL; -dynamic range. • Oversampling • Noise-shaping and sigma-delta converters 1.1 INTRODUCTION
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Unit 2 Chapter Exercises (NT1430.U2.GA1) Unit 2 Sobell‚ Chapter 5‚ p. 182‚ Exercises 1‚ 3‚ 4‚ 8‚ 10 Sobell‚ Chapter 6‚ p. 221‚ Exercises 1‚ 2‚ 3‚ 4‚ 6 Grading: Answers to the end-of-the-chapter exercises can be found in the text instructor guide. To access the guide‚ follow the steps outlined in the Instructor Guide for accessing the Pearson IRC. Pg. 1821. Which of the following installation steps are typically required on a Cisco router‚ but not typically required on a Cisco switch? a. Connect
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page. Show all your calculations to obtain full marks. Calculators are NOT allowed. Read all the questions carefully before you start. Question Points Percentage 1 40% 2 60% Total 100% Question 1 (40 points: 15 + 10+ 15): (a) Convert the following binary into (i) decimal‚ (ii) octal et (iii) hexadecimal 10100001111.1101 (i) to decimal (10100001111)2 = 1 x 210 + 0 x 29 + 1 x 28 + 0 x 27 + 0 x 26 + 0 x 25 + 0 x 24 + 1 x 23 + 1 x 22 + 1 x 21 + 1 x 20 = 1024 + 0 + 256 + 0
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computer before performing any competition. Data or instructions can be entered through input devices eg. Key board‚ or any other input devices. Input unit transferred this data into binary coded in short input unit performs the following function: It accepts data or instructions from external world. It converts these instructions and data in computer acceptable form. It supplies the converted instruction & data to the computer for further processing. Output unit: The job of output unit
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printing brought the Gutenberg revolution‚ making multiple copies easily and spreading education to millions of people. Printed books occupy space. Libraries and archives are bursting at the seams. Enter the computer age and digitization using the binary code of combining zeros and ones (0‚1) for alphabets and other such symbols‚ and reading them using the on-off electrical signals‚ which has made electronic storage possible‚ cutting down the size and space for ‘hard copies’. Integrated circuits‚
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Data Processing All through the different stages in civilization‚ man has always tried to look for ways to simplify work and to solve problems more efficiently. Many problems involved numbers and quantities‚ so man started looking for easier ways to count‚ to add‚ subtract‚ multiply and divide. As society has grown in both size and complexity‚ so have data that are generated by it through time. Definition of Terms Data – is defined as any collection of facts. Thus sales reports‚ inventory
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stored and processed by the computer as alphanumeric symbols. Alphanumeric symbols (e.g. A‚ B‚ C‚ D‚ 1‚ 2‚ 3‚ etc.) are an example of abstraction. They can be converted to and from other representations that are easier for a computer to process (e.g. binary code). The beauty of abstraction is that the user never knows this is occurring; the computer does the conversion ’behind-the-scenes. Right now‚ you are reading alphanumeric characters. Break down the word alphanumeric and you have ’alpha’ - as
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QUESTIONS-ANSWERS PREPARED BY Y.IREANEUS ANNA REJANI (AP/ECE) Noorul Islam College of Engineering‚ Kumaracoil Department of Electronics & Communication Third semester EC1203 Digital Electronics Part - A Unit – 1 1. Define binary logic? Binary logic consists of binary variables and logical operations. The variables are designated by the alphabets such as A‚ B‚ C‚ x‚ y‚ z‚ etc.‚ with each variable having only two distinct values: 1 and 0. There are three basic logic operations: AND‚ OR‚ and
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with a Binary Dependent Variable Binary Dependent Variables and the Linear Probability Model • • • Many of the decisions made by people are binary. What factors drive a person’s decision? This question leads to regression with a binary dependent variable. The binary choice problem is an example of models with limited dependent variables (see Appendix 9.3 for details). Note that the multiple regression model discussed earlier does not preclude a dependent variable from being binary. Boston
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TM128 Microsoft Server Technologies TMA 01 Question 1 (a) For this question and though out this course I will be studying using the operating system Microsoft Windows 7 Home Premium version 6.1.7600 Build 7600. Tests performed to determine my system type‚ processor speed‚ physical memory and free hard disk available is listed below. On my computer which I am running windows 7 I click the start button then type msinfo32 into the search box and press the return key. Please see screenshot below
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