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Recent content by nickooeda

  1. nickooeda

    electret condenser microphone (ECM) pre-amplifier

    maybe you can start with acknoledge your microphone,and then make the equalivant circuit.and find out the amp spec ,at last begin to design it!
  2. nickooeda

    Links to free layout tools

    free layout tool Why use free layout tool,it is very hard for foundry to implement your circuit
  3. nickooeda

    How can I do simulation of CMFB circuit using SPICE?

    OTA design OTA is very simple, u should caulculate all params in hand not with EDA tools!! It is very useful for your future work!! good luck
  4. nickooeda

    How to make a good MOS model for a design?

    MOS model for design the solution is in the appendix of in ALLEN's book [cmos analog intergrated circuit design]
  5. nickooeda

    [SOLVED] How to determine the bandwidth of OP when designing a DAC

    u must recognize your singal bandwidth,and then decide the bandwidth of OP amp
  6. nickooeda

    [SOLVED] [Help]How to simulate the jitter of the VCO output in HSPICE

    u can find the way in "cmos:mixed-signal IC design"
  7. nickooeda

    Efficiency of Analog IC Designing

    in fact ,these two ways are not practical .when u work in some company ,u will find you must master more ways :))
  8. nickooeda

    How to improve the bias stability in LAYOUT ?

    structer decide function,don't need the exact only one operation point,just for good structer of bias circuit.
  9. nickooeda

    New to Sigma - Delta topics

    u can search in GOOGLE.COM for some model of sigma-delta .and the mathwork.com support a very good tool to design sigma-delta,but first of all,you should understand what is sigma-delta!
  10. nickooeda

    how to become a mixed-signal IC designer?

    1-system and signal 2-theory of control system 3-digital design 4-analog design
  11. nickooeda

    Two questions about HSPICE

    HSPICE accuracy is very difficult for us to understand because the accuracy is controlled by many parameters and options,the most important is the model accuracy.
  12. nickooeda

    the best web site of analog ic design

    http://www.recafe.com is also a good website for design Added after 27 seconds: http://www.rfcafe.com is also a good website for design
  13. nickooeda

    how to improve the accuracy of SNR in HSPICE??

    I think the best way to calcultate SNR of signals is to use MATLAB to calculate.:)))
  14. nickooeda

    Looking for 0.13um CMOS models for ADS or SpectreRF

    CMOS 0.13um Models this is a bad question!! maybe u can go MOSIS.ORG for some model,good luck
  15. nickooeda

    how to compute the SNR of ADC from the dft output?

    in my option,the HSPICE's performance in SNR simulation is very bad,may print out the resulst to file .then use MATLAB to analysis,but u must take care about the relation between sample time in MATLAB and print time step in Hspice!!!!!!
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