CS Amplifier with Source Degeneration and Ohmic Load g = m G - PowerPoint PPT Presentation

4 4 CS Amplifier with Source Degeneration and Ohmic Load − g = m G ( ) + + m 1 g g R m mb S = − A G R v m D IIT-Bombay Lecture 7 M. Shojaei Baghini

5 5 CS Amplifier with Source Degeneration and Ohmic Load (cont’d) IIT-Bombay Lecture 7 M. Shojaei Baghini

6 6 Example g R = − = − 1 m D A G R v m D 1 ( ) + + 1 g g 1 1 m mb g 2 m IIT-Bombay Lecture 7 M. Shojaei Baghini

7 7 CS Amplifier with Source Degeneration and Ohmic Load in the Presence of Body Effect and CLM r = × o G g ( ) + + + m m r R g g r R o S m mb o S IIT-Bombay Lecture 7 M. Shojaei Baghini

8 8 Output Impedance of CS Amplifier with SD Straightforward way without any intuition and understanding With intuition ∆ I IIT-Bombay Lecture 8 M. Shojaei Baghini

9 9 9 Output Impedance and Gain of CS Amplifier with SD ∆ I ∆ ∆ V V ∆ = = RS I R out ∆ R I s ( ) ⇒ = + + + R R r g g r R out S o m mb o s IIT-Bombay Lecture 7 M. Shojaei Baghini

5 5 Source Follower g η = mb g m 1 || R s g g ⇒ = = m mb A v 1 1 1 + + + || g g R m mb s R g g s m mb IIT-Bombay Lecture 8 M. Shojaei Baghini