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Noise simulation in Cadence

EthanRFIC

 Hi,

 I'm learning Noise Simulation in Cadence.  The circuit is just a simple common source amplifier with a noise-less resistor as the load. What I want to do is to observe the noise situation for the nmos transistor.

 

However, when I do the simulation, spectre is always terminated due to a fatal error showing: 

"ERROR(SFE-51): name conflict: value 'M0' of type 'scalar subcircuit instance' encountered. Expected value is of type 'scalar instance'.

 ---I've checked out the manual reference, but I still have no idea what the error is there.

 

So if anyone can help me out? Thank you so much!

 

The simulation setup is :

 Analysis: noise

Sweep Range: start=1, stop=100G.

Output noise: probe, output probe instance: /M0

Input Noise: None

 I'm using Cadence version of IC6.1.5-64bit

Parents
  • analogy

    Andrew,

    I was wondering how do you plot flicker and thermal noise envelope during transition in an inverter ? 

    It's mentioned on slide 36 of the following designer's community document (http://www.designers-guide.org/Theory/cyclo-preso.pdf)

    I tried using noise analyses in ADE-L but  I think I'm going wrong with my intentions to see effect of sweeping input from 0v to 1v of inverter on flicker and thermal noise generated at the output of inverter.

Reply
  • analogy

    Andrew,

    I was wondering how do you plot flicker and thermal noise envelope during transition in an inverter ? 

    It's mentioned on slide 36 of the following designer's community document (http://www.designers-guide.org/Theory/cyclo-preso.pdf)

    I tried using noise analyses in ADE-L but  I think I'm going wrong with my intentions to see effect of sweeping input from 0v to 1v of inverter on flicker and thermal noise generated at the output of inverter.

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