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Hi,
Here is the problem I have. If I have a near square wave signal biasing at 0V with +-3V and this signal is feeding into ADC with reference voltage 0 to 3.3V.
What I interest is the only peak magnitude value of square wave (the negative part is actually not interested). Can I do so? Will this...
Hi,
I am trying to obtain the Transmittance and Reflection of entire structure and absorption in terms of percentage in each material layer.
The information currently I have is the reflection and transmission coefficient obtained from S11 and S21.
Is there any good function in calculator to do...
Hi I am new to Silvaco. I am trying to play around with built-in examples from Solar file. However, when I run it, there are some windows pop up: permission denied in Tonyplot. How can I fixed this issue.
Actually when I installed the software yesterday, there was hardlock.sys file (null)...
Hi,
I bought a commercial conductivity sensor (LFS 117 from IST). I am trying to build a circuit for water conductivity measurement. According to equation sigma (conductivity) = k*I/U, where k is a cell constant and I is the applied current and U is the voltage measurement by using 4-point...
Hi
The output current I give already increased the consideration of the maximum output voltage and impedance parameters. My question is since the current I needed is so small, are there many commercial products can meet this requirement?
Hi,
I have a conductivity sensor that is supplied ac current. For my project I want to supply a constant ac current (200-3000 Hz) normally in 0.1mA to 0.35mA range, typically 0.3mA. Is there any commercial product can output such current source? The most of product is actually working only for...
Hi,
Thanks for your reply.
One question is that why the more isolation will causes RF crosstalk? From my understanding, isn't longer separation distance will reduce the possibility of nearby EMI?
Hi, I am getting troubled with making connection between separation distance between two rf input port and wavelength of signal.
I know the two rf input ports cannot be placed to each other, otherwise there will be an EMI. However what is the minimum separation distance in order to have a...
Hi,
It may look stupid. I am just wondering will the reference voltage affect the sampling speed? In order words, can a ADC at Vref=2V has the same sample rate as the ADC at Vref=3.3V?
I think it will not affect the speed, only operating frequency and resolution of the ADC do. Correct me if I...
Hi,
I have understood it clearly. However, one more questions. In my case, the output voltage range takes only about 1/3 range of my ADC input range. So, as you said, probably only 10-bit is enough. My question is that the input range does not change still from 0 to 3.3V but the using...
Hi, guys, I have a question about the interface between sensor and ADC.
I have a power detector that produces voltage levels ranging from 0.26V to 1.1V.
My selected ADC input voltage range is 0-3.3V.
My question is that is that really necessary to build a interface using op-amp to map 0.26V to...
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