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10 Threads found on Mos Small Signal Model
The s-parameters being a small signal analysis can be easily calculated using any spice by means of AC analysis. The question is - the mos model you are using for LNA simulation is valid for RF range ? You can refer the application note to know how to calculate s-parameter using pspice -
Perhaps these Predictive Technology models (PTM) may help you: click Nano-Cmos, then change to your process size. Here - if need be - you can still adapt some parameters, then click Submit. Now you can download Nmos worst-case, typical, and/or best-case model parameters. Same procedure for
Hello everyone.. I know it's maybe a stupid question but i can't find a proper testbench to know the diode recovery time. I used a pulse signal with -2V-2V, and with the current , i didn't see any strike.... by the way, is there any recover time for mos diode????? 8390983910
Hi iainPOT, Assuming that the 2 inputs are applied at the mos differential pair(M1 and M2), you can draw the small signal model of the diff pair with the tail current and calculate the differential mode gain(Adm) i.e. vout/(vin1-vin2) where vin1 is applied to where vin is shown in the diagram and vin2 is applied (...)
Hi All, I am looking for a methodology or a way to do effective pole/zero and root locus analysis for analog blocks(both open & closed loop) effectively (no 1st order or 2nd order mos equations). The only way i am aware is to do operating point analysis in SPICE, extract the approx. values for all my elements in small signal (...)
Analog Cmos design by Razavi has given the method of diong it.Draw the small signal model of mos ,apply test voltage at drain shorting your input and look for the value of current flowing intio drain.You will find it as ro(resistance due to channel length modulation )and for looking into source it will be (...)
We have small signal model and large signal model for mos transistors and also analyze the small signal behavior and large signal behavior when doing circuit analysis. But how big is a big signal and how (...)
can any one give me low signal model of mos
Could you give me links explaining Second order effects in mos small signal model .. thanks in advance...
For the mos small signal model, there is Cgs between the gate and the source, is there any current flowing through this capacitor at small signal? in other words, is there any current flowing through the gate at small signal? Maybe it is a very stupid (...)