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Em3rgent0rdr (talk | contribs) →Examples: pretty sure Example 1 animation is just 9-bit, not 10-bit, conversion. Going from x-axis label 1 to x-axis notch 2 is determining the MSB. See talk. |
Em3rgent0rdr (talk | contribs) →Examples: again as I mentioned in talk, this animation starts with the initial state for the "x=1" notch. |
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{{As of|2001}}, the component-matching limitations of the DAC generally limited the linearity to about 12 bits in practical designs and mandated some form of trimming or calibration to achieve the necessary linearity for more than 12 bits.<ref>{{Cite web |date=2001-10-02 |title=Understanding SAR ADCs: Their Architecture and Comparison with Other ADCs |url=https://www.analog.com/en/resources/technical-articles/successive-approximation-registers-sar-and-flash-adcs.html |url-status=live |archive-url=https://web.archive.org/web/20241118075147/https://www.analog.com/en/resources/technical-articles/successive-approximation-registers-sar-and-flash-adcs.html |archive-date=2024-11-18 |access-date=2025-01-03 |website=[[Analog Devices]]}}</ref> {{As of|2012}}, SAR ADCs are limited to 18 bits, while [[Delta-sigma modulation|delta-sigma]] ADCs (which can be 24 bits) are better suited if more than 16 bits are needed.<ref>{{Cite web |date=2012-05-07 |title=Understanding Noise, ENOB, and Effective Resolution in Analog-to-Digital Converters |url=https://www.analog.com/en/resources/technical-articles/noise-enob-and-effective-resoluition-in-analog-to-digital-converter-circuits--maxim-integrated.html |url-status=live |archive-url=https://web.archive.org/web/20240422221715/https://www.analog.com/en/resources/technical-articles/noise-enob-and-effective-resoluition-in-analog-to-digital-converter-circuits--maxim-integrated.html |archive-date=2024-04-22 |access-date=2024-12-28 |website=[[Analog Devices]]}}</ref> SAR ADCs are commonly found on [[microcontrollers]] because they are easy to integrate into a [[Mixed-signal integrated circuit|mixed-signal]] process, but suffer from inaccuracies from the internal reference voltage [[resistor ladder]] and [[Clock signal|clock]] and [[signal noise]] from the rest of the microcontroller, so external ADC chips may provide better accuracy.<ref>{{Cite web |last=Giovino |first=Bill |date=2018-11-21 |title=IoT Microcontrollers Have ADCs, but Know When to Choose and Apply an External ADC |url=https://www.digikey.com/en/articles/iot-microcontrollers-have-adcs-know-when-apply-an-external-adc |url-status=live |archive-url=https://web.archive.org/web/20240624010637/https://www.digikey.com/en/articles/iot-microcontrollers-have-adcs-know-when-apply-an-external-adc |archive-date=2024-06-24 |access-date=2025-01-03 |website=[[DigiKey]]}}</ref>
[[File:ADC animation 20.gif|thumb|alt=Successive approximation animation|Operation of successive-approximation ADC as input voltage falls from 5 to 0 V. Iterations on the ''x'' axis
===Examples===
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