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I am afraid i can,t provide information in detail,because it is technical secret,in additional,the circuit is extremely large.my meaning is "someone have done some research in bandpass filter before probably can provide some information for this structure"
I got a analog filter here,but this structure of the filter is a little weird,it has four input terminals and four output terminals,i have never seen this structure before,who can provide me some materials about this structure,or tell me how it works with eight terminals.Thank you very much!
After ius 9.2 installation,and make a AMS simulation,an errors was encountered,i don't know how to solve the problem,is the problem related to the installation of ius 9.2?plz help!thank you in advanced~~
what you said is true,actually,my question is clear,Q and Q1 in that formula just a value,i don't think it take any matter,Q1 is that formula represents the value of a second order filter,Q1 represents the value of the combination of several 2rd filter.
I have read some books and found the Q value of the whole filter can be expressed as ,Q1 is the Q value of 2rd BPF，n is the number of 2rd BPF，my problem is how to get the formula,how to derive the formula,is there any material to explain this formula?
your opinion sounds good and i also agree with your opinions!but some paper enjoy using the FOM to compare with other papers to explain its opamp much better~~~
I read some paper and found that there are different kinds of formulas to define the FOM of opamp?and i am confused that how to choose the right formula to define it! for example,there is one formula like this:FOM=GBW*C(load)/I(total),i have no idea it is correct or not,could someone can provide...
how to transform "a single ended OTA-C filter" to a fully differential OTA-C filter?
for examle,how to transform a single ended output OTA to a differential ended output OTA,and then construct the filter but can not change the transfer function of the filter?
some paper refers about this kind of reference current source ,they say that Vref is equal to the voltage of source terminal of M62,thus the current draws through the mos M62 will be :Id=Vref/R13,however,using the spectre simulaltion,i can't get this result,actually,i do not understand the...
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