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Dear all,
What is the best book to go deep into asynchronous sigma delta modulators, from system level down to circuit design?
Thank you a lot for your help :)
For learning analog design, the models that are in all these books for a first approach could be ok.
On the other hand, my problem is that I am going to design analog circuits on a new technology that is not CMOS, and it is not even MOS actually, but the devices are still field effect devices...
Thank you. I studied on some books on analog IC design, mostly on Razavi and Baker, or device physics on Sze and Colinge, but they explain more on the physics of MOSFET and how to get to the equations for current than on the extraction of parameter for a given technology.
I have also the...
Hi,
Imagine to have an NMOS. The bulk is p-doped and S/D are n+ doped. In the bulk, the majority carriers are holes, that do not produce any current for a given Vds. On the other hand, in order to have a current. Vgs has to reach the so called threshold voltage. In this condition a depletion...
Hi guys,
I am very new to this topic, so I would like to know what is the standard procedure for extracting the parameters of a compact model that describes the behaviour of a MOS-like devices?
Supposing to have:
-Few sample wafers with devices from a very new technology, with different L, W...
As FvM suggested in a previeus post, a capacitor can be placed between the inverting in and the output of the opamp, in order to add a dominant pole to the loop and with some math the phase margin can be set at the wanted value.
Hi!
I'm pretty sure that the feedback polarity is not inverted, because if you look at the internal schematic of the LM317 in the datasheet, and you follow the path of the ADJ pin into the multiple stages, you will find out that the increase in voltage of the ADJ pin causes an increase in the...
**broken link removed**
As you can see from the picture it a very basic, simple schematic...
Some adjustments should be done, depending on the components that you want to use, precision...
if something is not clear, or you think that is wrong, please ask :)
Hi!
If you don't want to use uC or digitals, and you want to control multiple LM317 with one pot, you can put for each LM317 the out pin connected to a voltage divider (2 resistors in series), then connect the middle point to the inverting input of an OPAMP, and the out of the opamp to the ADJ...
It includes regular matlab code and at a certain point a C funzion is called. About the use of floating point, it has been required at the beginning, to maintain the same data format and the same results of matlab code...
So, for example if I know that the processor on which I ran the Matlab code has approx. 70 GFLOPS, to run the code twice slower I should choose a DSP with approx. 35 GFLOPS...Is it right?
Hi everybody!
I have a problem:
I have a Matlab code that perform signal processing (machine learning algorithms and stuff like that...) on a signal from a custom sensor in my system. I need to port this code on a DSP based platform, and I also have some real-time specification to achieve. I...
ok got it...
and If I use a PCB stack up like that:
signal top
4.5 mils FR4
GND
6.5 mils FR4
PWR
30 mils FR4
signal
5 mils FR4
GND
4.5 milsFR4
signal bottom
the refence of the inner signal layer may be the GND near the bottom, so is it necessary to pay all these attention to the power layer?
ehy! it's been a while...
I've read the Micron app note and all the "dependancies" of this app note and now the situation is much much more clear...
Now I have a doubt about the power plane: supposing that I'm using a 6 layers pcb with 3 signal layers and 3 power/ground layer, and I have a 3...
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