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simuation of ADC characteristics

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nijMcnij

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hello all,

i have designed a 10 bit ADC and i would like to simulate the major ADC characteristics.....but my knowledge in simulation of ADC characteristics is quite limited.......the characteristics i want to measure are the following:

1-DNL
2-INL
3-input offset voltage
4-Total Harmonic Distortion
5-Spurious Free Dynamic Range
6-Signal to Noise Ratio
7-Signal to (Noise+Distortion) Ratio

any ideas on how i can accomplish this in cadence or matlab is appreciated
many thanks
 

you can do it throught the cadence setup.
for the frequency related,u have to do the DFT first ,adn then u can find the SFDR,SNR values.
and u can do the inl and dnl in the transioent analysis.
 

thank you nagula suresh for your reply,

i am currently storing the digital output codes and the input signal level for every sample......i am running a transient analysis with a ramp signal.

now that i have the data stored in a file i export to Matlab, and plot the ADC transfer characteristic....but how do i find the INL and DNL?

and where do i do the DFT...in cadence or matlab and on which signal exactly

do u have any documents on the issue

many thanks
 

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