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biasing
The process in that papar is 0.18um 1P6M, be careful, next part is the most interesting part, "triple well." I have no idea what "triple well" means, N-well, P-well, and what's next?
The reason people keep telling you that you can't do bulk biasing for NMOS is that there are few...
You guys can check some books like "Inside SPICE" or "The SPICE Book." Those books got useful suggestions for solving simulation problems. They can also help you to setup your simulation properly.
Usually, the N-Well got the highest resistance per square but worst accuracy so not many people wanna take that risk. The alternative would be poly resistors. According to TSMC documents, the Rsh of P- poly w/o silicide can goes up to around 1k ohms/sq while P+ poly w/o silicide is only slightly...
Finally, I got it working.
I think I'd better share this with you guys in case someone got similar problem. I am using TSMC 0.24um and TSMC 0.18um. I am not sure is this solution will fit other process.
The MOSIS test data doesn't include the ACM. All you have to do is add ACM=0~3 in the model...
Yes, I know I can add diodes in the circuit, and that will be my last choice. The Hspice manual does indicate that MOS transistor model has two diodes: bulk-source, and bulk-drain. There are some equations for MOS diode. However, based on simulation results, I don't think that the simulation...
assura to diva
My opinion is, sometimes DIVA is not accurate. I used Dracula instead
of DIVA. I tried both of them and sometimes Dracula gave me some
errors when DIVA pass my design. DIVA is easy to use cuz it's online
check, click this, click that, and you are done. Dracula checks your
design...
I am not sure that Cadence uses Hajimiri's models. Sure, his noise
model makes him famous and got him tons of paper, but it doesn't
means his model is new "standard" and accepted by most people now.
If anyone know any CAD tool can show ISF, please share with us.
That would be interesting. 8)
spectre diode capacitance
I can use HSpice or Spectre, and I know simulator doesn't matter.
All I am asking is, how to make those two simulators to simulate
the circuit with diodes at each drains and sources.
In simulation, there are no diode at drains and sources, just some
capacitors...
spectre diode model
My simulation is about radiation impact so there will be a hugh current
occurs at probably any node of my circuit. The voltage at the node
which got hit will rises of falls extremely fast, that's ok, that's what we
expected. What we didn't expected is that voltage rises...
Super thanks, guys!!
One of my lab mates is going to do RF-BIST so I think BIST is
not only for digital but also suitable for analog/mixed-signal
area now.
Re: what are the new frequencies that people are trying to u
Hi, I got some questions for you guys again :P .
Is anyone know the specification of the UWB? All I know is that it's about 3 to 10GHz, and the bandwidth is around 500MHz. How about the other specifications such as phase noise?
Re: what are the new frequencies that people are trying to u
Thanks for all the replies. After discuss with my advisor, I got some options. One is to improve something that already done, like design a tri-band VCO for GSM/Bluetooth with extremely low power. Second one is to design a distributed...
Re: what are the new frequencies that people are trying to u
Thanks a lot, mmwave and electronrancher! :D
BTW, can you guys tell me about the specs or where I can get that
kinda information? I heared that next wireless network is about
8GHz or something like that, is that true?
We are using...
switched resonator vco
Hi all,
I need some favor from you experienced guys. What are the frequencies
that people are trying to use? I mean, the frequencies or bands that are
still developing. I am doing some research about dual-band (even tri-
band) RF VCO and frequency synthesizer and I am...
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