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The output of bias amplifier has large decoupling cap and this is used to bias a transistor in the pixel circuit of the camera.
the decoupling cap is order of uF, can i consider this cap for stability.
bias amplifier is in ugf configuration
i dont have access to science direct.
I have iopads availble in the technology library. i have to test them for esd protection, so i need to know what are the tests should be performed ?
When you switch on the current, There can be a possibility that vbiasp reduced to zero and vcasp node(uncertain or may be at vdd), then no current will be mirrored. In that case i have to add a start up, to pull down the "vcasp" node and pullup "vcasn" node. if it is ok how can i add start up here
Re: Capacitor Mismatch
It is very difficult to quote the values, it depends completely on the layout/technology. One has to extract the layout and check the cap value and reiterate.
capacitor mismatching
Statistically Random error in capacitor ratio has been observed to be depends on inverse square root depends on the capacitor-area. and linear dependance on permiter-to-area ratio.
These are the common rules to be followed to get better matching:
Use identical...
Re: layout question
connect 10 transistors in series having W/L of 10/10 with all the gates connected together. But it depends on where u r going to use it and how much over drive u can tolerate.
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