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HomeworkAssignment04Solution

HomeworkAssignment04Solution - 55:041 Electronic Circuits...

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55:041 Electronic Circuits. The University of Iowa. Fall 2011. 1 Homework Assignment 04 Problem 1 (Quick Takes 1 point each unless indicated otherwise) 1. Explain with one word/phrase what every letter in ―CMOS‖ mean. Complementary Metal Oxide Semiconductor 2. True or false: the threshold voltage ( for a particular MOSFET is, as is the case with the cut-in voltage ( ) of diodes, well-defined and not subject to large variation between samples of the same part number. False 3. True or false: the MOSFET parameter (NMOS) or (PMOS) varies between samples of the same part number, but essentially constant for specific MOSFET. False, it varies with temperature 4. A MOSFET is biased such that and . If changes with 1 mV, by how much does the drain current change? (2 points) ( ( 5. True or false: when transforming a circuit’s diagram to a diagram of its small-signal model, we replace dc constant current sources with open circuits. True 6. True or false: in the following circuit, the FET always operates in its so-called saturation region. True
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