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Typically digital circuits will pump a lot of fast transient currents into the ground. Since real grounds have resistance and inductance, this will produce a drop between the ground of the digital circuits and the power supply ground. This is the so called "ground bounce".
If an analog circuit ground shares ground path between the digital ground and the power supply ground, it will see this voltage drop. Depending on the common mode rejection of the analog circuit in question and the frequency components in the "ground bounce" this may or my not be an issue.
If it's an issue, the easy solution is to connect the analog ground directly to the power supply ground without sharing any of the path from digital ground to main power supply ground. This way the current spike induced drops in the digital ground don't show up in the analog ground. A good example would be ADC grounding for the digital and analog portions of the ADC chip.
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Diff between clocked SR flipflop and SR flipflop?
bokum
What is the difference between digital and analog signals?
Digital/Analog An analog or analog signal is any time continuous signal where some time varying feature of the signal is a representation of some other time varying quantity. It differs from a digital signal in that small fluctuations in the signal are meaningful. Analog is usually thought of in an electrical context, however mechanical, pneumatic, hydraulic, and other systems may also convey analog signals. An analog signal uses some property of the medium to convey the signal's information. For example, an aneroid barometer uses rotary position as the signal to convey pressure information. Electrically, the property most commonly used is voltage followed closely by frequency, current, and charge. Any information may be conveyed by an analog signal, often such a signal is a measured response to changes in physical phenomena, such as sound, light, temperature, position, or pressure, and is achieved using a transducer. For example, in sound recording, fluctuations in air pressure (that is to say, sound) strike the diaphragm of a microphone which causes corresponding fluctuations in a voltage or the current in an electric circuit. The voltage or the current is said to be an "analog" of the sound. Since an analog signal has a theoretically infinite resolution, it will always have a higher resolution than any digital system where the resolution is in discrete steps. In practice, as analog systems become more complex, effects such as nonlinearity and noise ultimately degrade analog resolution such that digital systems surpass it. In analog systems, it is difficult to detect when such degradation occurs, but in digital systems, degradation can not only be detected but corrected as well. Disadvantage The primary disadvantage of analog signaling is that any system has noise - i.e., random variation. As the signal is copied and re-copied, or transmitted over long distances, these random variations become dominant. Electrically, these losses can be diminished by shielding, good connections, and several cable types such as coaxial or twisted pair. The effects of noise make signal loss and distortion impossible to recover, since amplifying the signal to recover attenuated parts of the signal amplifies the noise as well. Even if the resolution of an analog signal is higher than a comparable digital signal, in many cases, the difference is overshadowed by the noise in the signal Digital The term digital signal is used to refer to more than one concept. It can refer to discrete-time signals that are digitized, or to the waveform signals in a digital system. Digital signals are digital representations of discrete-time signals, which are often derived from analog signals. An analog signal is a datum that changes over time-say, the temperature at a given location; the depth of a certain point in a pond; or the amplitude of the voltage at some node in a circuit that can be represented as a mathematical function, with time as the free variable (abscissa) and the signal itself as the dependent variable (ordinate). A discrete-time signal is a sampled version of an analog signal: the value of the datum is noted at fixed intervals (for example, every microsecond) rather than continuously. If individual time values of the discrete-time signal, instead of being measured precisely (which would require an infinite number of digits), are approximated to a certain precision-which, therefore, only requires a specific number of digits-then the resultant data stream is termed a digital signal. The process of approximating the precise value within a fixed number of digits, or bits, is called quantization. In conceptual summary, a digital signal is a quantized discrete-time signal; a discrete-time signal is a sampled analog signal. In the Digital Revolution, the usage of digital signals has increased significantly. Many modern media devices, especially the ones that connect with computers use digital signals to represent signals that were traditionally represented as continuous-time signals; cell phones, music and video players, personal video recorders, and digital cameras are examples. In most applications, digital signals are represented as binary numbers, so their precision of quantization is measured in bits. Suppose, for example, that we wish to measure a signal to two significant decimal digits. Since seven bits, or binary digits, can record 128 discrete values (viz., from 0 to 127), those seven bits are more than sufficient to express a range of one hundred values. Summary: Digital communication systems offer much more efficiency, better performance, and much greater the flexibility. Analog in a watch is where you have to read the numbers. Digital shows the numbers for you. a digital signal is what a computer system is based around; mainly zeros and ones / or noughts and ones as illustrated. a zero equates to zero volts approx . a one ( logic ) is 5 volts +_ a tolerance value. but there is limited range of signal in between these 2 points. a measured value of 2.5 volts would not be equal to either a logic 1 or nought . .... when a circuit / usually a transistor device switches on or off the voltage at its terminal usually changes from zero to 5 volts or logic 1 . the digital circuit only recognizes values at or around these 2 points and interprets them as a logic 1 or 0. .. in the case of the analog signal, the value could change between a negative value to positive or from zero to a positive value, within the supply constraints and still be recognized.
What is the diff between science and technology?
Science is seen as knowing why and technology is seen as knowing how,,,
What is the voltage difference between the neutral and the ground?
if we r talking about the power that is generated in powerhouses( i.e, source is not a D.C battery), one of the two terminals that comes out of the dynamo(of generator) is grounded near the generating plant itself. so theoretically speaking, ground and neutral are at same potential. so voltage diff between them would be 0. but practically, ground is a term given to terminal that connects body of electrical appliance at home or industry directly into earth. this is done to prevent electrocution of any person handling it, just in case the body of appliance comes into contact with a live wire within the instrument(may be due to faulty wiring or normal wear and tear) and with probably defective neutral contact. Even in case of such a happening, if there is proper grounding, the voltage diff between them is 0.
Do you have bottles for diluted down Clorox to use on C Diff?
No.
We have been using analog FM am tv radio broadcasting at work to listen to diff stations channels 2 to 13 now can not tune to tv stations just music?
Didn't you hear about the change to digital tv? Old analog tv's will not tune the new digital TV stations.
How do you remove commodore holden vs diff?
on the ground, what is the safe method to drop diff from 1996 statesman
Diff between 8086 and 8051?
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What is the diff between hubs and switches?
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Difference between net banking and telebanking?
they are not diff they are same
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Diff between clocked SR flipflop and SR flipflop?
bokum
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