Cmos Definition and 79 Threads

I'm looking for a small camera to use in my rocket. It's about a 7' rocket, 4" diameter and 3" long viewing window. I've heard that the choices are either cmos or ccd but I don't know the difference between the two. I'm only looking to spend up to $100 (really looking in the $50 range). Any...

Hi all, I have a question about the response of a cmos imaging sensor. The total exposure is defined as the irradiance * pixel area * exposure time and it can be varied by changing either the irradiance or the exposure time. Would the sensor response remain constant if measurements are taken...

I have some trouble understanding the CMOS chip and the BIOS chip. Some of the terminology throws me, for instance when "go into CMOS" and "go into the BIOS" are used interchangeably. Here's how I think it works: The BIOS chip: A "system rom" chip, non-volatile memory Contains firmware...

In my lab notes, it says that the connection of CMOS NAND circuits will draw non-negligible current...but I thought the point of the CMOS was because it uses such little current, at least that's what I wrote in my notes..I don't get it, what's going on?

Why does TTL consume more power than CMOS? I googled but did not find any useful information. I can think of the Base emitter diode drop as one cause. But are there other reasons why TTL consumes more power. Can I compare the ON resistance of MOSFETs Vs BJTs?

Hello everybody, I have been searching for a linear image sensor CCD or CMOS for emission spectroscopic applications.The length and pixel size should be around 70mm and 8-12um respectively. Will somebody help me in finding this? Another one is It's 'camera card' or data acquisition...

How do you determine the output impedance of cmos gates?

Hi..anyone here can explain to me what is the function of this device DG201 CMOS QUAD SPST ANALOG SWITCH? I had search using google or yahoo search machine but still can't find any site explaining this device. So if you know what is it please tell me or paste the link for me here. I dun want the...

Dear All I am looking forward to do a project in Cadence related to Analog CMOS IC Design and I need some project ideas that I can work on. thanks

we know that, CMOS is used rather than NMOS and PMOS for greater speed of operation. but, using PMOS and NMOS together for CMOS structure, how can we operate it for greater speed? :::: in CMOS structure, P and NMOS are shown one beside another.(for many cases,though there are many...

Basically, I'm trying to generate a short pulse when the user pushes a button using a CMOS gate and a rudimentary RC charging circuit. It all simulates fine in Multisim, but I'm concerned what will happen when I run this for real (still waiting for parts in the mail). Here's the diagram...

I want to estimate the power of a CMOS inverter circuit. I want to ask that is there any software for simulation purpose to give the power of CMOS inverter. The second problem I have is that when you calculate the dynamic power of CMOS dynamic power = Vdd2*CL*f This dynamic power depends...

I am looking for help on a schematic for a 12 transistor CMOS SRAM cell shown below. I understand how to implement the inverter and transmission gates and how a tri state inverter works, but I am confused when it comes to inverting the input of the buffer and how to tie it all together. Thanks...

Hello, What are the important differences between CMOS and CCD? I am studying the digital cameras

[SOLVED] cMOS inverter circuit question Hey guys I have the following circuit; its an inverter using transistors http://img716.imageshack.us/img716/7609/circuit.jpg Im trying to figure out what the voltage value of Vin should be WHEN both transistors are in saturation mode. I have...

Im using CMos digital integrated circuits by Kang-Leblebici. On p85-86 a description of how a MOS layer works is given which I can't fully understand. First, the MOS layer is likened to a capacitor. Then they discuss how the work functions and fermi levels of the metal, oxide layer and the...

What is stack effect in cmos design and how would it affect the threshold voltages?

Homework Statement write the output F for different combinations of input using F= abc F= ((ab)’+c)’ Homework Equations The Attempt at a Solution I've tried and have drawn the schematic but I can't get correct output righ, I am using LTspice which is not very...

If I'm talking to someone about cmos sensors and they tell me one sensor is made in the .50um process (circa 2000) and the other sensor is made in the .35um process (circa 2004). What are they tell me about the cmos sensor? Are there any good books on manufacturing cmos sensors? thanks

In a spectroscopy experiment proposal I am working on, I had the idea to use a CMOS Image sensor (monochromatic) coupled to an interferometer to record data of the O2 green line in the atmosphere. In my ignorance, I cannot seem to figure out what kind of data processor I should attach to the...

I'm doing some reading about CMOS circuits and the likes. In the book I'm using it tells me to derive the simplest sum of products for an expression from a truth table. The canonical sum of product is as follows: *- AND !- NOT + - OR (!x1*!x2* !x3*!x4) + ( !x1*x2*!x3*!x4)...

what can be the frequency for the clock signal that is to be counted? I read on another website that it is a minimum of 2MHz! to run optimally...that is. Well I am trying to count heartrate from a microphone that is amplified and filtered to look likea square wave or pulse train...Not sure yet...

Here's a story about a new proposal from Prof T P Ma, called Unipolar CMOS: http://www.semiconductor.net/article/CA6602780.html?desc=topstory This may take the P out of P-N semiconductors, boosting performance by 3 to 20 times, depending upon the material.

Hope this is the right place for this thread. Homework Statement Hi I need help with the truth table for a CMOS circuit. http://www.isk.kth.se/~william/dd/agda/bild/cmos/mos903.gif Homework Equations Truth table and What type of circuit is this? But I guess that's easy to...

Hey i need help configuring a CD4059A cmos made by Texas Instruments to divide an input signal by 100x. any Tips or schematics would be awsome here's a link to the data sheet of the CD4059 http://www.ortodoxism.ro/datasheets2/4/08zpgqfhxjjawz4y7id14ph596py.pdf Thanks steelaustin

Homework Statement Sketch a CMOS logic circuit that realizes the function Y = AB + A'B'. This is called the equivalence or coincidence function. Homework Equations The Attempt at a Solution The top is connected to Vcc... Is this correct? I'm learning this on my own and...

My friend was just given a computer from someone at work who got an upgrade. It has a BIOS password that no one knows. I start up the computer, press F2 and it starts into setup. But then says Type password and press Ctrl-Enter to disable security or press Enter to keep security. How can I...

Hello, I'm supposed to determine the region of operation of both the n-channel and the p-channel MOSFET'S when the control voltage is at VDD(5V) and both I/O terminals are at VDD. Also I have to figure out the region of operation when the control voltage is at VDD but the I/O terminals are at...

I just want to be sure about this: i have a spec sheet for CMOS with CMOS and TTL loads. The question is whether CMOS could drive TTL, so the general formula is fan-out = min(IOHmax/IIH, IOLmax/IIL) where IOHmax is the max output current at high state; IOLmax ... in low state; IIH is...