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hello people, I am simulating different corners in cadence spectre. however the graphs for all the parameters come out as individual. Is ther any way by which all the parameter variations could be obtained in a single graph? The same problem exists while doing statistical...
the images of the buffer amplifier ckt and its freq response(gain and phase plots) are below....it is unstable right? wat modifications do i have to do for the circuit if i hav to make it stable? the load cap. can be >=3.5pF.
how do you plot the bode plots of 20log βH(ω) vs ω and phase of βH(ω) vs ω in cadence spectre using ac analysis? what should i take as the outputs to be plotted?when i simply give ac analysis with a frequency sweep it plots V,A the voltages or currents vs frequency...so how to do it for 20log βH(ω)?
overdrive voltage 0.1
I need high values of overdrive voltage, 0.1V<Vgs-Vth<0.15V, for the transistors so as to reduce the effect of mismatch..but for this ckt i am gettin very low values of Vgs-Vth for the nmos and the pmos transistors...increasing the bias current decreases the openloop gain...
how to get uncox
can anyone tell me how to find the values of UnCox and the output resistance(ro) of the transistor(i.e. drain to source resistance):?:
I am using a thin oxide transistor W=150nm and L=40nm
i need to find the rise time in cadence spectre.....I have been using the calculator in wavescan to find it...now i have to test the circuit under different vdd conditions for which the expression for risetime also changes...is there any way by which i can use a variable as...
To design a unity gain cmos buffer amplifier(for 45nm technology):
Band Gap Reference (BGR) Input: 1.2+_50 mV (+_ means plus or minus)
Cload=3.5pF or higher
Iload(current load) 50uA
Temp:-45 to 125 degree C