azizbaskan
Newbie
Hi everyone. I am designing a high gain high bandwidth opamp with rail to rail input stage in 0.18um CMOS technology. Power supply is 3.3V.
I need advice from experienced designers. Which architecture should I use or which papers should I refer to ?
I already made a research about rail to rail input stage and found that a constant gm input stage and a folded cascode structure is used generally. Is it possible to reach 100 dB DC gain without gain boosting or do I need to use folded cascode structure with gain boosting ?. Also, is it possible to have 1GHz unity gain bandwidth and 100 dB DC gain with this technology?
Thanks in advance.
I need advice from experienced designers. Which architecture should I use or which papers should I refer to ?
I already made a research about rail to rail input stage and found that a constant gm input stage and a folded cascode structure is used generally. Is it possible to reach 100 dB DC gain without gain boosting or do I need to use folded cascode structure with gain boosting ?. Also, is it possible to have 1GHz unity gain bandwidth and 100 dB DC gain with this technology?
Thanks in advance.