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Recent content by isaacnewton

  1. isaacnewton

    Annotation problem with Cadence IC 5.0 on linux

    Re: cadence ic annotate It should be aelPushSignifDigits(4)
  2. isaacnewton

    Node voltages` annotation problem

    I got the same problem. Anybody know the solution? Thank you in advance.
  3. isaacnewton

    PSRR or PSR, which is more important?

    PSRR is the value of the power rejection refered back to the input. For the regular, it doesn't really have input signal, so PSR is measured. For the Opamp, there is an input, so ...
  4. isaacnewton

    how to collect 3.3v to 5v inside chip?

    raise supply 3.3 v to 5 v Level Shifter
  5. isaacnewton

    result of THD calculation in Cadence

    calc.pdf cadence I was trying to using Cadence Calculator to calculate the Total Harmonic Distortion (THD). I got the result something like "0.012m". Can somebody tell me whether it is in Percentage or not? In other words, the THD is 1.2% or 0.0012%:?: Thank you in advance:!:
  6. isaacnewton

    ADS Design Kit - TSMC018um CMOS

    I could not find the README file in the package. Don't why.
  7. isaacnewton

    ADS Design Kit - TSMC018um CMOS

    tsmc018um In this ADS Design Kit, there is a file: mm018_dk.net. In this file There are 12 different models for the same device: model TSMC_CM018RF_BB_MODEL_nch BinModel Model[1] ="TSMC_CM018RF_BB_MODEL_nchx1" Model[2]="TSMC_CM018RF_BB_MODEL_nchx2" Model[3]="TSMC_CM018RF_BB_MODEL_nchx3"...
  8. isaacnewton

    TSMC CL018/CR018 (CM018) Process

    Re: ADS designkit In this ADS Design Kit, there is a file: mm018_dk.net. In this file There are 12 different models for the same device: model TSMC_CM018RF_BB_MODEL_nch BinModel Model[1] ="TSMC_CM018RF_BB_MODEL_nchx1" Model[2]="TSMC_CM018RF_BB_MODEL_nchx2"...
  9. isaacnewton

    How to do Input Referred Noise simulation?

    Input Referred Noise is one important parameter for an operational amplifier. Can any one tell me how to do this kind simulation? Thanks.
  10. isaacnewton

    i need tsmc .25um ADS design kit (i have all the models)

    Do you have the Resistors or BJT Transistors models?
  11. isaacnewton

    Help me design an opamp for the output of DAC

    Re: Opamp Design Help.. You mean the output swing of the op amp is from 1.2V to 1.75 V?
  12. isaacnewton

    Please explain difference between these two 2stag op-amps

    Re: Please explain difference between these two 2stag op-amp The 2nd stages of both opamp are Common Source (CS) stages. The could be NMOS or PMOS CS stage. So both will work.
  13. isaacnewton

    LVS:4 netlist ambiguities were resolved by random selection

    Re: LVS:4 netlist ambiguities were resolved by random select Nobody has this kind of experience?
  14. isaacnewton

    LVS:4 netlist ambiguities were resolved by random selection

    After I done the LVS, I was told 4 net-list ambiguities were resolved by random selection. And I was also told: The net-list match. Can somebody tell me what's going on there? How can I fix it? Do I have to fixed before send it out? If I send the layout to fabrication, will the circuit work...
  15. isaacnewton

    "size error" during LVS,urgent, thank you!!!

    Terminal A and B are the same point. You can not put two terminals at the same net.

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