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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...

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13y ago

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