Table of Contents [hide]
- 1 What is the dynamic range of a 10 bit analog to digital converter?
- 2 What is the dynamic range for an 8 bit ADC?
- 3 What is 10-bit ADC?
- 4 What is the resolution of a 12 bit ADC?
- 5 How is FFT used?
- 6 What is oscilloscope math function?
- 7 When operating in bipolar mode a 6 bit resolution ADC supports a 10 V to 10 V range What is the smallest detectable difference in voltage?
- 8 How does an oscilloscope with FFT function work?
- 9 How accurate is an 8-bit oscilloscope?
- 10 Can I use a spectrum analyzer in place of an oscilloscope?
What is the dynamic range of a 10 bit analog to digital converter?
about 60 dB
Without the VGA, the 10-bit ADC provides a dynamic range of about 60 dB. However, by employing a low-noise VGA that has a gain range of 48 dB, the cascade of the VGA and the 10-bit ADC offers a dynamic range greater than 100 dB.
What is the dynamic range for an 8 bit ADC?
42 dB
Therefore, for 8-bit samples, the dynamic range is 42 dB, and “Bit Dynamic Range in dBFS” indicates the dynamic range for all number of bits per sample (resolution) discussed.
What is the dynamic range in a 5 bit digital conversion system?
The dynamic range is the ratio of the maximum voltage to the minimum voltage that the ADC can convert. The maximum voltage is 5 volts. So the dynamic range of your ADC is 5/1.22mV = 4096 = 72.2 dB. In general, the dynamic range is only a function of the number of bits, not the maximum input voltage.
What is 10-bit ADC?
The ADC on the Arduino is a 10-bit ADC meaning it has the ability to detect 1,024 (2^10) discrete analog levels. Some microcontrollers have 8-bit ADCs (2^8 = 256 discrete levels) and some have 16-bit ADCs (2^16 = 65,536 discrete levels). The way an ADC works is fairly complex.
What is the resolution of a 12 bit ADC?
ADC has a resolution of one part in 4,096, where 212 = 4,096. Thus, a 12-bit ADC with a maximum input of 10 VDC can resolve the measurement into 10 VDC/4096 = 0.00244 VDC = 2.44 mV.
How can I increase my ADC dynamic range?
One of the ways to achieve a higher dynamic range is to oversample the converter to accurately monitor and measure both small and large input signals from the sensors.
How is FFT used?
The FFT algorithm is used to convert a digital signal (x) with length (N) from the time domain into a signal in the frequency domain (X), since the amplitude of vibration is recorded on the basis of its evolution versus the frequency at that the signal appears [40].
What is oscilloscope math function?
Virtually every digital storage oscilloscope has math functionality. This goes beyond the instrument’s ability to measure, quantify and display the many waveform parameters of a signal at the input, although those properties are important too. To access this fascinating function, power up the instrument and press Math.
What is the dynamic range of a 16-bit analog to digital converter?
96 dB
The 16-bit words used for CD allow a maximum dynamic range of 96 dB although with the use of dither this is reduced to about 93 dB.
When operating in bipolar mode a 6 bit resolution ADC supports a 10 V to 10 V range What is the smallest detectable difference in voltage?
In bipolar mode, the range is -10.00 to 10.00 V, as shown in the second chart. The same ADC now separates a 20 V range into eight divisions. The smallest detectable difference in voltage increases from 1.25 to 2.50 V, and you now have a much less accurate representation of the signal.
How does an oscilloscope with FFT function work?
\\$\\begingroup\\$. An oscilloscope with FFT function uses built in mathematical analysis of the stored waveform to calculate the frequency content and amplitude of the signal. It is displayed on the screen as a frequency vs amplitude graph – just like a spectrum analyser.
What is the frequency of the oscilloscope signal?
The signal has a linearly swept frequency and the bandwidth, marked by the cursors, is 4.7 MHz. That’s how the FFT adds to the capability of the oscilloscope, it provides another point of view for the same data.
How accurate is an 8-bit oscilloscope?
An 8-bit oscilloscope such as the PicoScope 2205 gives a good enough visual representation of the wave, as shown in Figure 1. The frequency and amplitude of the wave can be measured with reasonable accuracy. Zooming in by 64x (Figure 2), however, shows up the limitations of 8-bit resolution.
Can I use a spectrum analyzer in place of an oscilloscope?
On the other hand, mixers don’t like DC at all, so in normal EE work, you won’t be able to use a spectrum analyzer in place of an oscilloscope either. Current day spectrum analyzers (SA) are seldom fully sweep tune. Most do FFT and stitch channels together to form a frequency span.