The swing of the first ouput stage in two stage opamp

[iamxo]

My opamp is used in pipeline ADC as MDAC opamp. I use two-stage structure, the first stage is telescopic with the output common-source stage. My query is that whether the ouput swing of the first-stage should be large or not.. when the opamp is in the feedback loop.

Thank you..

 

[safwatonline]

output swing/ gain of second stage

 

[iamxo]

oh... I see, thank you.