Homework4 - D versus drain-source voltage(V DS curves of an...

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UNIVERSITY OF PITTSBURGH Department of Electrical and Computer Engineering ECE1238 Spring 07 Digital Electronics Assigned: February 6, 2007 Due: February 13, 2007 (before lecture) Homework 4 ------------------------------------------------------------------------------------------------------------------------- 1. Problem 5.1 (page 214): Use the formulas derived in Chapter 5.2. Read Chapters 4 and 5. Practice SPICE: PSpice Primer is available at the course website. http://www.engr.pitt.edu/electrical/faculty-staff/kim/1238/ Exercise: (a) Using SPICE, plot the drain current (I
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Unformatted text preview: D ) versus drain-source voltage (V DS ) curves of an NMOS transistor shown in Example 4.1 (page 161). Sweep the drain-source voltage V DS from 0 to 5 V for the gate-source voltages V GS of 0, 1, 2, 3, 4, and 5 V. Use the LEVEL 2 model of an NMOS device. The I-V curves should look somewhat similar to those in page 164. (b) Repeat the practice problem (a) using the LEVEL 1 model of an NMOS device and compare the results. (Chapter 4.2 and 4.3 describe the LEVEL 1 and 2 models.)...
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