Lecture 12

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Unformatted text preview: g m1vin rO1 Av = − g m1rO1 = − EE105, Fall 2013 VA VT Av ≈ − g m1rO 2 g m 2 (rO1 rπ 2 ) Lecture 12 – Slide 11 Prof. Ming C. Wu Voltage Gain of Cascode Amplifier §༊  Since rO is much larger than 1/gm, most of IC,Q1 flows into diode- connected Q2. Using Rout as before, AV is easily calculated. iout = g m1vin ⇒ Gm = g m1 Av = −Gm Rout = − g m1 [(1 + g m 2 (rO1 || rπ 2 ))rO 2 +...
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This note was uploaded on 01/22/2014 for the course EE 105 taught by Professor King-liu during the Fall '07 term at University of California, Berkeley.

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