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| 465 Tektronics Oscilloscope |
So what is this analog circuits?
Analog circuits are those in which voltage and current vary continuously through the given range of time. Analog circuit uses continued value analog signals (continuous valued signals). They can take on infinite values within the specified range. This circuits are usually complex combinations of Op-Amps, resistors, capacitors and other basic electronic components (electronic circuit elements). This circuits can be designed to amplify, attenuate, isolate, distort or modify the applied signal in some way. Analog circuits can be very difficult or complex to design due to the involvement of various connection of circuit elements or they can be simple like combining two resistor to make a voltage divider. Analog circuits are much more sensitive to noise (undesired voltage, harmonics). But sometimes this sensitivity of analog circuit to noise is used as an advantage(This point will be explained in more details where an example of this, is encountered).
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| Class B Push Pull Amplifeir |
The devices which uses analog circuits to process the signals are called analog devices. Examples of analog devices include signal generators, radio frequency transmitter/receiver, electric motors and speed controllers.
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