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# They will consume too much ic real estate 10 55041

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Unformatted text preview: . 10 55:041 Electronic Circuits. The University of Iowa. Fall 2011. Problem 8 An n-channel MOSFET with , saturation region with . Determine the transconductance 1 mV, by how does the drain current change? (6 points) Solution √ √( ( ( ( 11 is biased to operate in its . If changes with 55:041 Electronic Circuits. The University of Iowa. Fall 2011. Problem 9 The n-channel MOSFET in the circuit below has a) b) c) d) , Assuming the FET is operating in its saturation region, show that Determine the transconductance . If what is the corresponding change in drain current? If what is the corresponding change in drain voltage? . . (12 points) Solution Part (a) ( ( ( Part (b) √ √( ( Part (c) ( ( Part (d) ( ( 12 55:041 Electronic Circuits. The University of Iowa. Fall 2011. Problem 10 You are a student taking the PEI course at The University of Iowa. As part of a laboratory exercise, you must measure the input resistance of an amplifier. You are provided a signal generator, and learn from the amplifier’s datasheet that the gain , and the input resistance is around 100K. Describe, using a figure and equations as needed, how to perform this task. (5 points) Solution Set up the following circuit. Pick 100K. Set the signal generator amplitude and measure, using a high impedance voltmeter or oscilloscope, the voltage and Then, the current flowing through The values for and is ⁄ ( are not critical. 13 , and , . 55:041 Electronic Circuits. The University...
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## This note was uploaded on 10/26/2013 for the course ECE 55:041 taught by Professor Kruger during the Fall '11 term at University of Iowa.

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