how to remove the pole in the Gm!

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benever

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how to remove the pole in the Gm!
 

Can you describe your question in detail ?
 

i am designing Gm-c lowpass filter with the cutoff requency is about 100k .

to achieve this ( a high linearity) , the Resistor is very large. so when i simulate a

single Gm, the curve is this figure 2,not as normal figure 1!


tell me why!
 

benever said:
i am designing Gm-c lowpass filter with the cutoff requency is about 100k .
to achieve this ( a high linearity) , the Resistor is very large. so when i simulate a
single Gm, the curve is this figure 2,not as normal figure 1!
tell me why!
Hi
where is your figures?
what is your circuit?
explain more
regards
 

 

hr_rezaee said:
Hi
it is similar to pole zero duplet.
regards


sorry , i don't know how to eliminate it

you know ,when it occur, the filter is ripple is not as low as i want.

i don't know whether it affect the ripple of the filter!

tell me how to affecteliminate it!

thanks!
 

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