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common source amplifier with source degeneration
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7/21/2019 Common Source Amplifier With Source Degeneration
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Common source Amplifier with source Degeneration
In electronics, a common source amplifier is one of three basic single stage Field
effect transistor (FET) amplifier topologies, typically used as a voltage ortransconductance amplifier. In some applications the square law dependence of the
drain current depend upon the overdriven voltage introduces the excessive nonlinearity making to soften the device characteristics.
Characteristics
At low frequencies and using a simplified hybrid pi model, the following small
signal characteristics can be derived.
7/21/2019 Common Source Amplifier With Source Degeneration
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Analysis: The different types of analysis of this type of amplifier is given below:-
Fig(a) Schematic of CS Amplifier with source degeneration
Fig (b) DC Analysis of CS Amplifier with source degeneration
7/21/2019 Common Source Amplifier With Source Degeneration
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Fig (c) Transient Analysis of CS Amplifier with source degeneration
Fig(d) AC Analysis of CS Amplifier with source degeneration
7/21/2019 Common Source Amplifier With Source Degeneration
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Fig(e) Layout of CS Amplifier with source degeneration
Result: So we have seen the different types of the analysis of the
common source amplifier with source degeneration. So it is used to
decrease the Vgs and is required when we need linear and semi linear
characteristics.
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