Lecture 20

Ming c wu source follower 0 0 rs av av 1 rs gm rin

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Unformatted text preview: C. Wu Common Source Stage λ =0 Av = R1 || R2 − RD ⋅ RG + R1 || R2 1 + R S gm Rin = R1 || R2 Rout = RD EE105, Fall 2013 λ≠0 Rout ≅ RD (rO + g m rO RS ) Lecture 20 – Slide 4 Prof. Ming C. Wu 2 Common Gate Stage λ =0 Av = RS || (1 / g m ) ⋅ g m RD RS || (1 / g m ) + RG Rin ≈ 1 RS gm λ≠0 Rout ≅ RD (rO + g m rO RS ) Rout = RD Lecture 20 – Slide 5 EE105, Fall 2013 Prof. Ming C. Wu Source Follower λ≠0 λ =0 RS Av = Av = 1 + RS gm Rin = RG Rout = 1 + rO || RS gm Rin = R G 1 || RS gm EE105, Fall 2013 rO || RS Rout = Lecture 20 – Slide 6 1 || ro || RS gm Prof. Ming C. Wu 3 CS Stage Example 1 §༊...
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