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gbwp closed loop
One say : the more GBW , the faster op amp ? What means speed of op amp ?
What is the relationship between SR and GBW ? could anyone let me know clearly ?
Thanks a lot
I am simulating a charge pump. In order to know the relationship between oscillating frequency with pump drive ability, I hope to know the parasitic L of boosting capacitor in pump circuit and get the maximum frequency in theory. Near the maximum frequency , the pump circuit may work with high...
cadence edit object parameter
Usually, m parameter is suitable for transistor level but not gate level. m=2 means two times wider as default width. Please think about it . Maybe it will bring troubles if m parameter set to instance !
import gds cadence
Maybe you can try to exprot gds2 from L-Editor and then import that files into Virtuoso. One remark , it it better to import one technology file which Virtuosos needed first.
layout sram
It is better to add ohm contact on upper level. For example , 64M consists of 4 16M banks . 16M-bank consists of 4 4M-blocks . 4M bolck consists of 16 256k-segments. 256K-segments consists of 256K cells . Maybe you can add ohm contact in segement level .
Reliability Check
Could anybody offer me some material or paper on CMOS reliability issue such as NCS ( non conducting stress ) HCS ( hot carrier stress) ? I won't plan to have deep understanding but it is better to show me some picture.
Thanks
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