0
You want the signal to not change while it is being converted by the ADC. Otherwise, you could get wildly inaccurate results.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What is a reference voltage of an adc?
The voltage at which the adc converts the signal.... it can also be called a limit of an ADC.
Comparison between ADC and DAC?
An ADC, or analog to digital decoder, is used to "translate" analog signals into digital signals. An analog signal can take on any value, such as 0.1V, 0.5V, 4.12V, 5V and so on. A digital signal on the other hand can either be "high" or "low", 1 or 0. A computer can only work with digital signals, and therefore you need to convert an analog signal into a digital signal in order for the computer to be able to work with it. This is what you do when you record sounds or music. Sound is an analog signal and had to be converted with an ADC to a digital signal before it can be used in a compter or stored on a CD. A DAC, or digital to analog decoder is the oposite of the ADC. Here the digital signal is converted into an analog signal. This is what happens when you play music from a CD-plate. On a CD there are a number of holes, which each translates as a 0 or 1. These are read with a laser beam which is reflected back into a receiver whenever the laserbeam hits a hole. This then counts as a 1. When the disk is spinning it produces a stream of 1s and 0s, which togerther form a binary string, such as 00010111011101. The DAC then converts this value into a analogue signal, such as 1.1V, which is then used to power your speaker and produce audible sound.
What converts a message from digital to analog and analog to digital?
An DAC convert digital signal to analog signal i.e Digital to Analog Converter. An ADC convert analog signal to digital signal i.e Analog to Digital Converter.
What are the types of ADC?
Types Of ADC Are As follows: 1.Counter type ADC 2.Successive approximation type ADC 3.Flash Type ADC 4.Wilkinson type ADC
What is monolithic ADC?
a monolithic ADC is an integrator-based analog-to-digital converter. Simply put, the input voltage signal is integrated, compared to a reference voltage, and converted into a digital representation. The integrator uses a reference capacitor (hence monolithic i imagine), which is chosen depending on the bandwidth of the input signal.Don't take my word for it, see for yourself. The ICL7135 for example is a monolithic ADC with 4 and 1/2 digits BCD output.
What is a reference voltage of an adc?
The voltage at which the adc converts the signal.... it can also be called a limit of an ADC.
What is Counter type ADC?
Counter type ADCOne of the simplest types of the ADC is the Counter type ADC. The input signal of the ADC is connected to the signal input of its internal comparator. ADC then systematically increases the voltage on the reference input of the comparator until the reference becomes larger than the signal & the comparator output goes to zero.Fig.1 Counter type ADCDinesh Kumar - http://harshit.org
Explain the purpose of the simple and hold circuit in a computer controlled data acquisition system that uses a ADC?
I presume you mean "sample and hold"; to read a voltage an ADC takes a finite amount of time - if the voltage changes during that time, then a misreading can occur. The sample and hold keeps the voltage seen by the ADC constant during the reading time.
Comparison between ADC and DAC?
An ADC, or analog to digital decoder, is used to "translate" analog signals into digital signals. An analog signal can take on any value, such as 0.1V, 0.5V, 4.12V, 5V and so on. A digital signal on the other hand can either be "high" or "low", 1 or 0. A computer can only work with digital signals, and therefore you need to convert an analog signal into a digital signal in order for the computer to be able to work with it. This is what you do when you record sounds or music. Sound is an analog signal and had to be converted with an ADC to a digital signal before it can be used in a compter or stored on a CD. A DAC, or digital to analog decoder is the oposite of the ADC. Here the digital signal is converted into an analog signal. This is what happens when you play music from a CD-plate. On a CD there are a number of holes, which each translates as a 0 or 1. These are read with a laser beam which is reflected back into a receiver whenever the laserbeam hits a hole. This then counts as a 1. When the disk is spinning it produces a stream of 1s and 0s, which togerther form a binary string, such as 00010111011101. The DAC then converts this value into a analogue signal, such as 1.1V, which is then used to power your speaker and produce audible sound.
How does the near and far effect influence TDMA systems?
The near-far problem is a condition in which a receiver captures a strong signal and thereby makes it impossible for the receiver to detect a weaker signal. There is a long-standing issue that the dynamic range of one or more stages of a receiver can limit that receiver's ability to detect a weak signal in the presence of strong signal. The near-far problem usually refers to a specific case of this in which ADC resolution limits the range of signals a receiver can detect in a direct sequence spread spectrum (DSSS) system such as CDMA. The receiver's AGCmust reduce its gain to prevent ADC saturation, which causes the weaker signal to fall into the noise of the ADC. This is different from a condition of one signal interfering with another because if the ADC had sufficient resolution, it would be possible to recover both signals. By contrast,TDMA systems are less vulnerable.
What converts a message from digital to analog and analog to digital?
An DAC convert digital signal to analog signal i.e Digital to Analog Converter. An ADC convert analog signal to digital signal i.e Analog to Digital Converter.
What are the types of ADC?
Types Of ADC Are As follows: 1.Counter type ADC 2.Successive approximation type ADC 3.Flash Type ADC 4.Wilkinson type ADC
Which device converts a digital signal to text?
A: If the signal is analogue then an ADC analogue to converter is required. The output will be in a digital form and that can be decoded and displayed as readout using LEDS or any other visual media
What is the maximum sampling rate for the Analog input on the Arduino using the Arduino software?
Adc clock is 16Mhz by prescaler factor.prescalce is set to 128 (16Mhz / 128 = 125kHz) in wiring.c ADC is in 13 clocks so sample rate would be about 125kHz/13 = 9600 kHz
When was ADC Airlines created?
ADC Airlines was created in 1984.
When was ADC Theatre created?
ADC Theatre was created in 1881.
When was ADC Telecommunications created?
ADC Telecommunications was created in 1935.
