Basically an analog circuit is any circuit which uses the voltage (or current) level to deliver information (say.. a sine wave or an audio output). In contrast a digital circuit would only use a high and a low voltages (square wave, binary data transfer etc).
Discrete circuits are circuits only using basic components (resistors, transistors, capacitors etc) instead of integrated circuit packages.
A lot of discrete circuits are analog but they don't have to be. And a lot of ICs are digital but they don't have to be...
Analog signals are continuous while digital signals are discrete
The ANALOG FILTER used in analog circuits.The DIGITAL FILTER USED IN DIGITAL circuits.
The difference between the analog mul-titester and a digital mul-titester is that an analoq mul-titester varies in continues scale while the digital mul-titester has discrete values that is zero (0) and one (1).
Analog is displayed in a clock like instrument digital is shoun in numbers
THE TERM CONTINUOUS SIGNAL AND DISCRETE SIGNAL CLASSIFY THE SIGNALS ALONG THE TIME (i.e. horizontal axis) where as THE TERM ANALOG AND DIGITAL SIGNAL CLASSIFY THE SIGNAL ALONG THE AMPLITUDE (i.e vertical axis) we often confuse our-self with continuous time and analog signals. An analog signal is a signal which can take any amplitude in continuous range that is signal amplitude can take infinite values on the other hand a digital signal is one whose amplitude can take only finite numbers of values
Analog signals are continuous while digital signals are discrete
discrete fourier transformer uses digital signals whereas the fast fourier transform uses both analog and digital.
The ANALOG FILTER used in analog circuits.The DIGITAL FILTER USED IN DIGITAL circuits.
discrete
Analog can reach higher speeds.
The difference between the analog mul-titester and a digital mul-titester is that an analoq mul-titester varies in continues scale while the digital mul-titester has discrete values that is zero (0) and one (1).
analog
The basic difference is that in analog modulation the modulating signal is analog signal and in digital modulation it is in digital form.
The most fundamental difference, I would say, is that Amplitude Modulation (AM) is a kind of Analog Modulation Technique (the modulation is applied continuously in response to the analog information signal) where Amplitude Shift Keying is a type of Digital Modulation Technique ( an analog carrier signal is modulated by a discrete signal, digital modulation methods can be considered as digital-to-analog conversion, and the corresponding demodulation or detection as analog-to-digital conversion. The changes in the carrier signal are chosen from a finite number of M alternative symbols).
I'm not sure if you are speaking of a specific instance.... However, a digital signal is a binary representation of the analog signal. The analog signal is constantly measured and the amplitude (voltage at the time of sample) of the analog signal is converted to a binary number at specific intervals (the frequency of the sample rate). The higher the frequency of the sample rate, the more accurate the representation of the analog signal.
Error resulting from trying to represent a continuous analog signal with discrete, stepped digital data. The problem arises when the analog value being sampled falls between two digital "steps." When this happens, the analog value must be represented by the nearest digital value, resulting in a very slight error. In other words, the difference between the continuous analog waveform, and the stair-stepped digital representation is quantization error.
analog (continuous) and discrete (discontinuous)