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HI Friends,
what I am going to ask might be funny but here it is:-
where to start for designing BJT based amplifiers... ?
I have ample experience in amplifiers with MOSFETS...
thanks
On another note... more towards debugging ur problem.
Did you check the stability of your feedbck loop in the voltage buffer.
Since you are driving a capacitive load and the buffer has negative feedback involved you need to ensure its stability as well.
Your stability analysis of outer loop...
HI
cant say if this is gonna help you ...
but the buffer architecture you are using is called Super Source follower.
You can read aboout it in Gray&Meyer's book. There they have also discussed about its instability.(You can see that it is using shunt feedback to reduce the output impedence)...
HI
I guess u are using IC station from mentor graphics ...
Its a really user friendly tool for layout.
every thing is controlled through graphical strokes.
for help press the right button on ur mouse and draw the shape of question mark with cursor... a sub window will open telling u about...
Sorry for the typo on "Middlebrook".
Of course even Middlebrook breaks the loop but in that case you can break the loop at any place.
But is it possible that even Middlebrook's method gives wrong results?
just a doubt...
HI
If your Amp is two stage (self biased) then break the loop at the input of second stage of amplifier.
if not then its better you proceed with middlebook's method.
what do you say LVW?
current mode ic
Hi All,
I am looking for a book:
Analogue IC design By C. Toumazou, F. J. Lidgey, David Haigh
This is on current mode approach of ic design.
please let me know if you the soft-copy for it.
thanks in advance
Ashish
mos model lampda
You simulate the level49 parameters to get level7 parameters...
the hspice statement you have given uses "CDO" I asked you to divide by "Id"
the curves u get this way are good enough to give you a first cut design which simulates very close to expected values. After that only...
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