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Recent content by sreechoudhary

  1. S

    some praktikal questions

    Here i am posting some questions please give me the exact answers asap 1) What is the best/required bandwidth of a filter that you need at the input of an AD converter if one desires to convert a signal at a specific speed and with a certain number of bits ? Note - The Shannon principle is...
  2. S

    Questions about LNA output design

    Could you please send me the circuit. thanks and regards
  3. S

    Questions about LNA output design

    hai 1. you will match inputof the second stage by increasing the outputport resistance and combining with the balun . 2.as per my knowledge no ned of considering capacitance.you will get the values of R, L by using simple RLC resonance circuit formulae. regards Added after 2 minutes...
  4. S

    analog designer oppotruniteis in INDIA

    hai i would like to know the list of companies working on analog design in INDIA thanks
  5. S

    factors affecting current mirror

    the main factors sre matching output volatge voltege swings the impedane at the inputs of the transistor may cause errors.
  6. S

    Need help on LNA topology

    yes you can do that one with inductive degeneration with offchip inductor you will get wideband matching in 3 ways 1.by dequing the circuit 2.by adding extra pole at the input matching 3.by using varactor diode inplace of capacitor(this one may be best possible solution) another way is...
  7. S

    How to build an AGC circuit?

    Re: AGC circuit hai thankyou very much for your reply colud u have the AGC ciruit interms fa bandgap circuit. regards
  8. S

    noise due to active loads

    hai i am sending my circuit as attachment please help me .try to give me theretical reason behind the noise
  9. S

    How to build an AGC circuit?

    hai i know the functionaly and basics of the AGC circuit. i need complex circuit.can any one give me the idea .how to build AGC?
  10. S

    noise due to active loads

    Hai all I am doing LNA design .active loads influencing the noisefigure can any one suggest me goodmaterial for noise due to active loads thanks and regards
  11. S

    some basic questions on LNA

    hai all I am very having some basic doubts please give me reply. 1.I am doing LNA design ,for single ended LNA ..when i am doing the simulations for single ended LNA and i am trying to get relation between overdrive voltage and IIP3 (keeping length constant and varying width).for single ended...
  12. S

    How can I get the small-signal output resistance by spectre?

    can any one post exact circuit and the results for DC-operationg point Added after 14 minutes: how to calculate dc,ac,trans responses of simple transistor in cadence spectre can any one p[post with circuit thanks in advance
  13. S

    Bandwidth and Gain Bandwidth

    bandwith refers to -3dbone where as gain bandwith is unity band (power and current)
  14. S

    Moving to Germany, any advice?

    you can look into www.jobstairs.de it may help you
  15. S

    how to get the critical field

    in some books you will get critical feild Vs mobility by using that curve u will surely get critical feild Added after 3 minutes: normally the value of critical feild is 5Mv/cm ,i think
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