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101 Threads found on Noise Mos
OK. I just have to redesign my amplifier to get minimum noise figure and to do that I am told design again using JOPT=0.2mA/um How should I begin to design my n-mos? and also what is finger width?
as I see here TM2 is Pmos and TM1 is Nmos. You have to use TM2 on top not TM1 - - - Updated - - - are u using noise cancellation technique ? - - - Updated - - - this is 127868
Hi all, I'm designing low noise sample and hold circuits in umc_65 low leakage process, and for high density I want to use mos capacitors for the sampling caps (50-100pF). However, I'm not sure if my noise and pnoise simulations are correctly accounting for the ESR of these caps, or other noise sources in (...)
hello evryone.... does the direction of noise current source differ for nmos and pmos ???
To get help on this question, I think you should provide more info about the corresponding circuit. Without such info I'd just say BIAS on top, GND on bottom plate of a mos cap for noise-filtering, CLK doesn't need any.
Hi, I have attached BSIM equivalent model of mos. I want to know the (transresistance) transfer function from drain channel noise source to the internal vgs of the mosFET (Not between external G and S but internal vgs excluding Rg and Rs drop) in a particular circuit. I know how to use pss+pnoise+noise (...)
Hi, Can anybody tell me how to do dynamic noise margin analysis for mos SRAM cell in strong feedback mode using HSPICE ? Thanks in advance
Hi, Can anybody tell how to plot SNM for 6T SRAM cell graphically using matlab.I have obtained butterfly curves ?I am working on the following paper"Static-noise Margin Analysis of mos SRAM Cells EVERT SEEVINCK, SENIOR MEMBER, IEEE, FRANS J. LIST, AND JAN LOHSTROH, MEMBER, IEEE".Although there is a method provided in the paper but complete informa
Hello everybody Actually, I have designed a fully differential amplifier like the attached picture. Actually I have simulated all parameter in DC and AC, the only parameter which I could not simulate and also it is the most important one, would be noise figure. the main problem is that how to connect the noise source at two inputs( + and (...)
Hi, Can anybody tell me what is a square transistor.I came across this word when I was reading the following paper:"Static-noise Margin Analysis of mos SRAM Cells EVERT SEEVINCK, SENIOR MEMBER, IEEE, FRANS J. LIST, AND JAN LOHSTROH, MEMBER, IEEE".
Is it that flicker noise in diffusion resistors is perhaps not that big a component of the overall noise or something? Flicker noise emerges from interferences of current flow at any boundary interfaces (worst in mos channels). Diffusion resistors show more interface area (actually the whole reverse-biased silic
BF862 is a JFET and is very good for your application. JFET's have much lower noise than any other transistor type (BJT, mos, GaAs) at low frequencies.
There are many ways to reduce the current mirror noise contribution, e.g. degeneration resistors or larger bypass capcitors.
In abidi 's paper ,it said the capacity connect in the bias mos can improve parse noise but the width of current bias is limite because too large Parasitic capacity is not good, what the difference of these two capacity? 3Q~
Please give some materials or method for finding noise spectral density for bulk driven mos circuits operating in moderate inversion region???? Thanks in advance
71069 1. I simulate a simple cross couple vco at 42GHz,but the drain voltage of the tail current mos is have a period as the couple pairs f0,why? 2. why the phase noise is higher than 0? The problem can be seen in the picture,thanks~
The output thermal current noise increases with the current, but the transistor transconductance also. Then, you calculate the input noise dividing by gm^2, thus the input noise decrases. Consider the mos thermal noise: SIDout = 8/3 kT gm = 8/3 kT 2ID/(VGS-VTH) and SVin = SIDout/gm^2 = 8/3 kT / gm = 8/3 kT (...)
Hi All, may I know how to reduce flicker and thermal noise in mos devices. I see that Flicker noise is inversely proportional to area, so increaseing area would reduce flicker noise. Is there anything that can be done to reduce thermal noise. Thanks a lot in advance!! Best Regards, M.
Hello, I read somewhere that Buried Channel Pmos has lesser flicker noise, because current flows deeper rather than at the Si-Sio2 interface where most of the traps are. I wanted to know what type of Pmos is used today in fabrication, is it buried pmos or surface pmos ?
hi all, which has a greater impact ; noise on current source or the noise if present on the mos loads has greater effect in a differential amplifier. how can we justify that noise if predominant at a particular component has more effect plzz let me know.. thank you