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Recent content by haykding

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    [Moved]: Need interesting problems about electrical circuits.

    Hi All , I want a book or website with the simple/difficult and tricky/interesting problems about electric circuits.
  2. H

    What is needed to open a start-up company in the filed of mixed signal IC design ?

    Re: What is needed to open a start-up company in the field of mixed signal IC design Thanks for the reply :) How many years approximately ? :) I think that this one is the most suitable choice. Can I just use cracked versions ? ;) Can it bring a problems? ))) ------------------ Can I...
  3. H

    Freelance with CMOS Analog and Mixed Signal IC specialization ?????

    Re: Freelance with CMOS Analog and Mixed Signal IC specialization ? Hi erikl, What about this post ?
  4. H

    Stability of feedback systems

    What does it mean "stabilize the circuit for open loop" ? Isn't it stable in all cases ? Maybe you mean DC stability for example in the Bandgap circuit or beta multiplier ?
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    Monte Carlo - circuit exlusion

    To be honest I haven't used that software so I don't know the details. Just use the documentation and you can find the solution. :)
  6. H

    Monte Carlo - circuit exlusion

    If the ADEXL has capability you mentioned why are you not using it ?
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    What is needed to open a start-up company in the filed of mixed signal IC design ?

    What is needed to open a start-up fabless company in the filed of mixed signal IC design ? What type of devices/IP need to be designed (Wireless, USB, ADC/DAC , Power Management , PLL etc...)? How to find/attract customers ? Where to fabricate the chip with the minimal cost ? Let's assume...
  8. H

    Monte Carlo - circuit exlusion

    I think you can create model of MOS transistor which will have different name and will have agauss statement in it. And you need to change model name only for diff pair. Other transistors need to be leaved as is (w/o monte carlo library ).
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    High speed signals through long routing.

    can you explain how the other high speed signal causes duty cycle variation ? can you show some waveforms ?
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    what is function of the PMOS between the op-amp two stages?

    No I meant the transient simulation which you had already provided. I see the difference but I do not sure about the "speed" of the comparator as mentioned in the above posts. I see that the output signal has more sharper transitions then w/o MP3 transistor. Can you also measure the delay...
  11. H

    what is function of the PMOS between the op-amp two stages?

    Can you plot input/output characteristics of this comparator with and without the MP3 transistor ? Also it is interesting the waveform of the node before the output inverter.
  12. H

    0.13um nmos transistor S Parameter Values

    Please send me the netslist/deck :)
  13. H

    Freelance with CMOS Analog and Mixed Signal IC specialization ?????

    Thanks for the reply. So the conclusion is that it's not wise to think about freelancing with VLSI design. :)

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