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Hello,
Here is the weak inversion equation that I know:
Ids=2*n*u*Cox*Vthermal²*exp((Vgs-Vth)/(Vthermal*n))
Now, I've got a few questions about this:
1) How does the Vds dependency of Ids play in? On MIT open course, I've found the add-on (1-exp(-Vds/Vthermal)) to be multiplied with the...
Hi,
I have a differential amplifier with an adjustable gain between 30-200 with input signals of 1V DC + 3mV sine and 1V DC. The idea is of course to amplify the AC part, not the DC part. Transient simulations however show that the shape of the output sine signal is a little distorted, with the...
Hi,
I am having a similar problem with Calibre too. I have already run the .exe file and completed the installation, but I'm told that it's also necessary to run a docs******.mis file to implement the right architecture for the software. I have the file, but when I try to run it (and yes, I...
Hi,
We have designed a basic current source loaded nmos common-source amplifier as well as an op-amp in a 0.35 technology in cadence and we would like to optimize the design for a minimum 1/f noise. Since I am not very familiar with noise simulations, can anyone help me with:
1) Does the...
Is it actually possible at all to design a CS amplifier with a PMOS device as the input transistor, while still reaching similar voltage gains as with the NMOS amplifiers? All examples I have found so far use an NMOS as the input device, but we would like to try the PMOS approach due to its...
PMOS common source amp.
Hi there,
We are trying to implement a PMOS only common source amplifier (both amplifying transistor and its load must be pmos) with a 20 db amplification based on a 350nm technology (AMS 0.35um). The whole thing is planned to operate with 3.3V supply voltage and must...
ams hit kit 4
I also have a similar problem, however with the installation itself... I have received the DVD with the tar.gz file but there is no "ams_install" executable, as it is suggested in the online installation manual on the DVD... I have unpacked and untarred the file myself, but this...
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