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Recent content by Cesar92

  1. C

    simulation problem ic5141 but no error ??

    you have a problem with ADE configuration, so you car resolve this by: In your Analog Design Environment (ADE): +chose "setup" ---->"Model Libraries" +in the "section" of your transistor model WRITE cmos, nmos pmos cap, res... you can see the description of your MOS transistor library section...
  2. C

    simple swtiched capacitor circuit using macro op apm model

    Re: simple swtiched capacitor circuit using macro op apm mod so the origine of your 998.5V come from your not inverter input amplifier: you have: V+=998,5V mybe (V+=998,5mV) and not 998,5V.
  3. C

    snapshot of schematics made in Cadence IC 5033?

    draw shcematics for papers You can make that as: cd /.../usr/local/...../IC5033/tools/plot/bin (Cadene ICxxxx Installation) and exicute the binary file to create your .cdsinitplot file. ./plotconfig
  4. C

    how to model a photodiode in a simulation

    Cd=10fF, it's just an example for cadence sim.
  5. C

    how to model a photodiode in a simulation

    reverse bias photodiode Hi The equivalent model of Photodiode is: A current source parallel with a capacitor. so, the current source is variable (by the incident light in the photodiode). The capacitor Cd is equal to value Cd=10fF par example.
  6. C

    Folded cascode sabilization amplifier

    Hello, I'm desiging a FCDA for a 60dB gain, high output swing. but, my load capacitor is variable from 20fF to 100fF max. I have a phase margin <45° can someone help me please? look at the attached file.
  7. C

    Folded cascode sabilization amplifier

    poles and zeros in folded cascode Hello, I'm desiging a FCDA for a 60dB gain, high output swing. but, my load capacitor is variable from 20fF to 100fF max. I have a phase margin <45° can someone help me please? look at the attached file.
  8. C

    Transimpedance amplifier

    For me, I must design a CTIA (Capacitive TransIpedance Amplifier) with two capacitors switched feedback for a pixel.
  9. C

    how to simulate VGA(variable gain amplifier) in cadence

    Your VGA is a continuous Variable Gain Amplifier because you have Vctrl (so, is not a VGA steep I think), so in the first you can make a AC simulation and a AC simulation with a SWEEP of Vctrl voltage variation to view the curves with differents values of Vctrl. This method is going to be set...
  10. C

    IC5141 Layout *Error*eva: undefined variable - menuIdPull

    IC5141 Layout Hello, everybody I'm using IC5141 with ams_v3 design kits for simulation, when I start cadenece by ams_cds -t c35b4 command, I have the error message: Loadinr generic HIT-Kit context. *Error*eva: undefined variable - menuIdPull Loading the environment file. Error eval: undefined...
  11. C

    Procedure for installing Cadence ICFB on Linux 5.0

    cadence_aptivia33_lnx86 Hello, you can use this installation of Cadence 5033 under Mandriva Linux 9.2 or others operating system Linux. -------------------------------------------------------------------------------------------- 1. Installation of Cadence IC 5.0.33 (Virtuoso/Spectre/Dracula)...
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