What is Analog-to-digital converter?
[[File:WM WM8775SEDS-AB.jpg|thumb|right|250px|4-channel stereo multiplexed analog-to-digital converter WM8775SEDS made by [[Wolfson Microelectronics]] placed on a [[Sound Blaster X-Fi|X-Fi Fatal1ty Pro]] [[sound card]].]] An '''analog-to-digital converter''' (abbreviated '''ADC''', '''A/D''' or '''A to D''') is an [[electronics|electronic]] [[integrated circuit]] that converts a [[Continuous signal|continuous quantity]] to a [[Discrete signal|discrete time]] [[digital]] number. An ADC may also provide an isolated measurement. The reverse operation is performed by a [[digital-to-analog converter]] ('''DAC'''). Typically, an ADC is an [[electronics|electronic]] device that converts an input analog [[voltage]] or [[Electric current|current]] to a digital number. The size of the number grows with an increase in the input voltage or current. However, some non-electronic or only partially electronic devices, such as [[rotary encoder]]s, can also be considered ADCs. == References == * {{Citation |first1= Phillip E. |last1= Allen |first2= Douglas R. |last2= Holberg |title= CMOS Analog Circuit Design |isbn= 0-19-511644-5 }} * {{Citation |editor-last= Kester |editor-first= Walt |title= The Data Conversion Handbook |year= 2005 |publisher= Elsevier: Newnes |url= http://www.analog.com/library/analogDialogue/archives/39-06/data_conversion_handbook.html |isbn= 0-7506-7841-0 |access-date= 2011-08-01 |archive-date= 2016-10-07 |archive-url= https://web.archive.org/web/20161007205654/http://www.analog.com/library/analogDialogue/archives/39-06/data_conversion_handbook.html |url-status= dead }} * {{Citation |last1= Johns |first1= David |last2= Martin |first2= Ken |title= Analog Integrated Circuit Design |year= 1997 |publisher= Wiley |isbn= 0-471-14448-7 }} * {{Citation |last= Knoll |first= Glenn F. |title=Radiation Detection and Measurement |edition= 2nd |year= 1989 |publisher= John Wiley & Sons |location= New York |pages= 665–666 }} * {{Citation |last= Liu |first= Mingliang |title= Demysti