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I have designed too many op amps and none of them have any issue with a wide range variations of supply voltage , temperature , corners of process , worst case pvt circumstances , etc . but the problem is the monte carlo analysis by which my op amps are all totally devastated .I know the monte...
I really do understand why you are saying , I want to know ,to what extent can the nonlinearity of the CMFB circuit affect the total linearity of the whole system? and my purpose of the step response simulation is to know how fast can the CMFB circuit response to the large common-mode voltage...
I am wondering if anybody has ever performed the step response and linearity simulation for CMFB ? if so ,would you please give me an complete description about the configuration and signals which should be applied to the circuit (CMFB+main) for step response and linearity simulations of CMFB...
I mentioned that my CMFB is DDA ,so there is no need to resistors.and also the outputs both go to the high or low voltages simoltaneously(not necessary the vdd or gnd ) there is no difference between two outputs in common-mode operation . why do we need to swap the inputs?! when i change the...
I have some qustions about CMFB ckt. I have a complete grasp on what the CMFB is and how to design it ,but I have some problems in connecting it to the main ckt. here it is : I design the main amplifier which is a fc one first ,when i connect the CMFB circuit which is a DDA CMFB the ouput level...
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