Editing Digital electronics (section)

{{Short description|Electronic circuits that utilize digital signals}}

{{Multiple image
|header = Digital electronics
|direction = vertical
| image1   = Digital-signal-noise.svg
| caption1 = A [[digital signal]] has two or more distinguishable waveforms, in this example, high voltage and low voltages, each of which can be mapped onto a digit.
| image3   = HitachiJ100A.jpg
| caption3 = An industrial [[digital control]]ler
}}

'''Digital electronics''' is a field of [[electronics]] involving the study of [[digital signal]]s and the engineering of devices that use or produce them. It deals with the relationship between [[Binary number|binary]] inputs and outputs by passing electrical signals through [[Logic gate|logical gates]], [[Resistor|resistors]], [[Capacitor|capacitors]], [[Amplifier|amplifiers]], and other [[Electronic component|electrical components]]. The field of digital electronics is in contrast to [[analog electronics]] which work primarily with [[analog signal]]s (signals with varying degrees of intensity as opposed to on/off two state binary signals). Despite the name, digital electronics designs include important analog design considerations.

Large assemblies of [[logic gate]]s, used to represent more complex ideas, are often packaged into [[integrated circuit]]s. Complex devices may have simple electronic representations of [[Boolean logic#Digital electronic circuit design|Boolean logic function]]s.<ref>{{cite book|last1=Null |first1=Linda |last2=Lobur |first2=Julia |title=The essentials of computer organization and architecture |url=https://archive.org/details/essentialsofcomp00null |url-access=registration |page=[https://archive.org/details/essentialsofcomp00null/page/n156 121] |year=2006 |publisher=Jones & Bartlett Publishers |isbn=978-0-7637-3769-6 |quote=We can build logic diagrams (which in turn lead to digital circuits) for any Boolean expression...}}</ref>