mid3 - Student’s Name PROBLEM 1(25 points A...

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Unformatted text preview: Student’s Name: PROBLEM 1 (25 points) A diode-connected MOSFET is driven by a DC current source, I X =0.25mA. μ n C ox = 90 μ A / V 2 λ = 0.1 V − 1 V Th = 0.7 V W = 5 μ m L = 0.5 μ m A. Is the MOSFET M 1 operating in triode or saturation ? Why? B. Solve the DC operating point and all small-signal parameters for this circuit: Utah State University page 1 of 6 ECE 3410 - Microelectronics I Midterm 3 TEST M 1 I x v G β = V ov = V G = r ds = g m = 1/ g m = C. A small-signal input, i in , is added to the current source as shown. Calculate the MOSFET’s equivalent small-signal resistance and give an ex- pression for the small-signal waveform v g (t). Utah State University page 2 of 6 ECE 3410 - Microelectronics I Midterm 3 TEST M 1 I B v G i in i in = (10 μ A )sin 2 ! ft ( ) V ov V in − V out g m 1/ g m r ds PROBLEM 2 (38 points) A source follower (common-drain) stage is shown at right....
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This note was uploaded on 05/03/2010 for the course ECE 3410 taught by Professor Cripps,d during the Spring '08 term at Utah State University.

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mid3 - Student’s Name PROBLEM 1(25 points A...

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