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Recent content by electronhole

  1. E

    [Moved]: Method of Current Injection

    Can anyone provide some good reading stuff on the method of current injection for non-linearity analysis in circuits.. Thanks!
  2. E

    Noise Calulation in Passive networks

    Say I have a capacitor and resistor, then 1/2 CV^2 = 1/2 kT. right? where V^2 is the mean squared noise voltage across the capacitor. I wan t to how this equation is modified in case there are many resistors and capacitors..so that one can calculate the mean squared noise voltage across the...
  3. E

    Noise Calulation in Passive networks

    yes i know this.I am asking how to apply the equipartition of thermal noise when there are more than one capacitors in the circuit
  4. E

    Noise Calulation in Passive networks

    Hi, Can any one help me in calculating mean square value of noise voltage in passive circuits (containing R L C only)..Suppose the output of interest is voltage across any one of the capacitor (there may be other capacitors as well) How can we apply the equipartition law for thermal noise here?
  5. E

    [SOLVED] Active filter design

    and whats the reason for the errors to be small in case of op-amps compared to OTA
  6. E

    [SOLVED] Active filter design

    can you please explain the reason?
  7. E

    How to maintain ID constant by increasing VGS

    change the aspect ratio (W/L) of the MOSFET
  8. E

    [SOLVED] Active filter design

    well, when emulating the inductor (of parallel R L C ) by active elements we do have both bandpass and lowpass nature at both nodes in a biquad section. I'm implementing a buttreworth response with wp = few MHz In particular, is it possible to tell which one (gm-C or op-amp RC) will be more...
  9. E

    [SOLVED] Active filter design

    I want to design a active filter emulating the RLC filter. I have two options to implement a) using gm-C b) using op-amp and RC which is a better method and why?? also i wanted to know how the frequency responses are affected due to parameter variations in both the cases.. i want to know the...
  10. E

    [SOLVED] Design of Delta Sigma Modulator

    I want to design a NTF for DSM with complex zeros such that the in-band noise is minimized. Is there any any algorithm (can be implemented in MATLAB) that I can use to place the zeros ??? Thanks!
  11. E

    [Moved]LNA(Low Noise Amplifier) Design

    please help... i am meeting all other specs except the S11 when i am trying to achive the require S11 over the band, i have to decrease the input Q of the circuit and this in turn increases the NF beyond 2dB.. what to do...
  12. E

    [Moved]LNA(Low Noise Amplifier) Design

    okay.. so anyone with any solution/approach..
  13. E

    [Moved]LNA(Low Noise Amplifier) Design

    Hi, I need to design a differential Low-Noise Amplifier (LNA) using the IBM 90nm CMOS process with f0= 2.3 to 2.6GHz, Differential Rin= 100Ω; S11 < -15dB, Voltage gain ≥20 dB, NF ≤2dB, IIP3 ≥-5dBm. can any one help how to proceed with the design meeting all the contrains with minimum power.
  14. E

    Electric vlsi layout - need Help

    Any1 using electric vlsi for layout i am pretty new to layout design.. need basic helps
  15. E

    DC/DC Switching Regulator

    The 'magic box' is the DC/DC converter The schematic employs negative feedback to ensure Vout stays at Vref even for variations in Vin or other parameters such as the load current. My question is how to calculate the required gain of the feedback amplifier??
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