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what is the test bench to find...gm/id curve

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arya.jagadeesh

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is it necessary to have constant current while plotting gm/id vs vov curve...... post the circuit to find
 

Depends on what you need in your application: you may choose between

  • constant Id
  • constant Vds
  • Vdg = 0 ("diode connection")
See this example gm_over_Id_vs_gate_overdrive_nmos_simulation.jpg
and tutorial: View attachment gm-Id-example_curves.pdf
 
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