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Thanks for these Matlab files. I was looking for these files to calculate SNR of my Sigma delta ADC.
When I simulate this file I have an error,
"??? Undefined function or method 'calcSNR' for input arguments of type 'double'."
Function calcSNR is not defined..Can you please help me.
Thank you
op amp compensation
Hi all,
I am designing a two stage folded cascode opamp. Specification of load capacitor has very high range.
The minimum load cap is 470pF and maximum is 100nF. I am finding it difficult to compensate this opamp. With 470pF load capacitor, the output node becomes second...
Hi all,
I am trying to do the fft on the digital output of SD modulator in matlab.
can anyone tell me how to use the window function in matlab(hamming window) and how to plot the spectrum after this.
I am new to matlab programing.
Thanks a lot
input signal bandwidth
Hello,
Can any one explain me this..
What is input signal bandwidth of ADC. How this is related to the ADC throughput rate?
Thanks
inl dnl plots in simulink
I have the result of ADC for ramp input in Matlab/Simulink.
Now I want to plot the INL and DNL and Gain error for this result.
Can anyone help me to do this..
Thank you..
Hi all,
I am designing a sigma delta modulator.
What should be the output of 1 bit modulator for a dc voltage.
For example, if the supply voltage is 1.8V, and if I give input voltage for the modulator as 1.8V dc( or 0.9V or 0.45v), what i should expect as the digital output at the output of...
plot flicker noise cadence
Thanks..
I could get the flicker noise plot with noise analysis.
Now, I used choper stabalization method to remove this flicker noise.
But there is no change in the flicker noise result after the choping also.
I expect the PSD should show the flicker noise shifted to...
cadence noise simulation
Hi,
I would like to do the flicker noise(1/f noise) simulation of differential opamp using cadence tool.
Which analysis I should do? Is it noise , pnoise or pss analysis?
How to give the necessary parameters for these analysis? Do anyone have an example schematic for...
capacitor measurement
Does anyone has some experience in measuring the capacitor values using the delta sigma adc.
My requirement is to measure the capacitor with aF change.
Hi,
I want to test the ac analysis of opamp with Bipolar input stages.
I used the big R and big C in the feedback loop to open the feedback for AC analysis.This works only for the CMOS input stages. But bipolar input stages need base currents..
Can anyone help me with the test circuit?
Thank you..
Is it possible to use the standard 3 opamp instrumentational amplifier for the single ended input application..
I want to use the instrumentational amplifier..But it requires the differential input..Is there any method to use the single ended input with instrumentational amplifier..
thank u..
I have designed sallen key high pass filter..The cutoff frequency is 1MHz..
Now I need to tune the R and C of this filter since the variation of these components are 20% in the silicon..I am looking for any proven method for this..
Thank you..
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