Lecture_20 - i Find the voltage gain of the circuit...

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EE 310 Lecture 20 The Common-Drain Amplifier (IC Version) I DQ v I V SS R L R out R in v o + V DD + Q 1 V SS + V DD I REF Q 2 Q 3 Lecture 20 Page 1
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Common-Drain Amplifier, IC Version (Cont.) I DQ v I V SS R L R out R in v o + V DD + Q 1 V SS + V DD I REF Q 2 Q 3 r o 1 g 1 d 1 v gs 1 g m 1 v gs 1 + s 1 g mb 1 v bs 1 v bs 1 + b 1 s 1 Sketch the model of this circuit: EE 310 Lecture 20 Lecture 20 Page 2
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The Common-Drain Amplifier; IC Version I DQ v I V SS R L R out R in v o + V DD + Q 1 V SS + V DD I REF Q 2 Q 3 r o 1 g v gs 1 g m 1 v gs 1 + s g mb 1 v bs 1 v bs 1 + s + r o 3 v o + d, b R L v o + v i Find the voltage gain of the circuit: First relate v gs 1 and v bs 1 to v i and v o : EE 310 Lecture 20 Lecture 20 Page 3
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The Common-Drain Amplifier Voltage Gain (Continued) I DQ v I V SS R L R out R in v o + V DD + Q 1 V SS + V DD I REF Q 2 Q 3 r o 1 g v gs 1 g m 1 v gs 1 + s g mb 1 v bs 1 v bs 1 + s + r o 3 v o + d, b R L v o + v
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Unformatted text preview: i Find the voltage gain of the circuit (cont.): Now set up the relationship between v i and v o by writing the v o equation: EE 310 Lecture 20 Lecture 20 Page 4 Finding R in and R out of the Common-Drain Amplifier r o 1 g v gs 1 g m 1 v gs 1 + s g mb 1 v bs 1 v bs 1 + s + r o 3 v o + d, b R L v o + v i 1. Find R in by inspection: 2. Next, R out is defined as: 3. Relate v gs 1 and v bs 1 to the test voltage, v x : EE 310 Lecture 20 Lecture 20 Page 5...
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This note was uploaded on 10/12/2010 for the course E E 310 at Pennsylvania State University, University Park.

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Lecture_20 - i Find the voltage gain of the circuit...

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