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Re: How to simply the circuit
Hi In2Dusk,
Thanks for the reply. I still did not get why 1/gm+gmb connected to VSS and ro connected to delta V in the figure 3.23(c) ( previous post).
In the book "Design of Analog Of CMOS Integrated Circuits", page 65, Prof. Razavi mentioned he derived the...
Hi All,
I read Razavi book and got stuck at the below figure
I do not know how Figure3.23(b) be simplified to Figure3.23(c).
Thing that bother me is that why 1/(gm+gmb) connected to ground (vss) while ro is connected to delta V.
For existing configuration, I think 1/(gm+gmb) // ro so, the...
to hyy95120: thanks for your comments
Actually, I 'm not good at FIFO.
To amrk_nctu:
Could you please be more specific. I 'm interested in your method.
Thanks,
Tom
Hello,
In my circuit I needs 3us delay element . It is too big if using Resistor and Capacitors would you please help me to suggest any possible ways to design that long (3us) delay. Thank you very much.
Tom
average current rms current
I 'm running fullchip simulation to extract the current consumption during operations using HSIM tool .
I 'm not sure which of the below type of currents I should watch
Average current , RMS current, Intergration current
Could anyone who is familiar w/ the tool...
"on the amplitude plot, find the frequency where gain=1. then at that frequency, find the phase value. Use 180-that phase value, you will get phase margin."
I knew the things you 've just mentioned ...
But what the phase-magin really means ? it says somthing about the stability ?
Hi all,
I'm studying the stability of the feedback amplifier. I 'm confusing
the term " phase-magin" Could you please help me to ex[lain what exactly phase-margin is ?
and why choosing criteria : 1) Phase shift between input,output < 180°
2) Unity...
Voltage divider question
"Scheme 1 is used on filters to get a different terminal impedance compared to the internal impedance. The capacitors form part of the filter."
Could you please be specific in term of "terminal impedance" and "internal impedance"
thanks
-tomph
Voltage divider question
"as far as i know second scheme should be preferred,since it will be more faster.also the area occupied will also be significantly lesser in the second case than compared to the first case. "
So, in which case the scheme # 1) would be used ?
thanks
-tomph
Voltage divider question
1) V1 ------------||------Vdiv------||-----------|GND
2) V1-----------\/\/\/\----Vdiv------\/\/\/\/\-------|GND
The circuits above served as the voltage dividers...
Thanks all of you for the suggestions. By the way,I 've been using Razavi book I really like
the ways how to analyze the circuits, very intuitive. I'm not sure there 're other books or
wesites teaching about analog design like Razavi 's book.Thanks again
Tomph.
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