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<?xml-stylesheet type="text/xsl" href="https://devzone.nordicsemi.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>SAADC accuracy of nRF52810</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/55391/saadc-accuracy-of-nrf52810</link><description>Hi. 
 
 I am measuring VDD voltage using SAADC. VDD is a coin battery. 
 I want to know the accuracy of SAADC. 
 Is EG1 / 6 (+3 / -3 %)an error for SAADC?</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Wed, 18 Dec 2019 09:53:45 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/55391/saadc-accuracy-of-nrf52810" /><item><title>RE: SAADC accuracy of nRF52810</title><link>https://devzone.nordicsemi.com/thread/226084?ContentTypeID=1</link><pubDate>Wed, 18 Dec 2019 09:53:45 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:fde868bd-adfb-4d98-8744-35df1dfc62bb</guid><dc:creator>Jared</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;again, the accuracy is not specified in terms of the sample voltage but rather the error for a specific gain setting. The ADC offset is specified in the documentation as +- 2 bits for LSB with 10bit resolution after a calibration with a differential setting.&lt;/p&gt;
&lt;p&gt;regards&lt;/p&gt;
&lt;p&gt;Jared&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: SAADC accuracy of nRF52810</title><link>https://devzone.nordicsemi.com/thread/225799?ContentTypeID=1</link><pubDate>Tue, 17 Dec 2019 07:15:01 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:ad326a9b-61e8-49af-8845-2a360649e0bb</guid><dc:creator>moon.kim</dc:creator><description>&lt;p&gt;Hi&lt;/p&gt;
&lt;p&gt;I have one more question.&lt;/p&gt;
&lt;p&gt;What is the ADC accuracy in the range between 2.2V and 3.2V?&lt;/p&gt;
&lt;p&gt;And I can&amp;#39;t find any information about the ADC offset in the datasheet.&lt;/p&gt;
&lt;p&gt;Please let me know this information.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: SAADC accuracy of nRF52810</title><link>https://devzone.nordicsemi.com/thread/225154?ContentTypeID=1</link><pubDate>Thu, 12 Dec 2019 12:41:18 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:78ac9857-2a62-422f-bc97-d3e630557960</guid><dc:creator>Jared</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;The accuracy is given by the Error for the given gain.&amp;nbsp;&lt;/p&gt;
&lt;p&gt;regards&lt;/p&gt;
&lt;p&gt;Jared&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: SAADC accuracy of nRF52810</title><link>https://devzone.nordicsemi.com/thread/225046?ContentTypeID=1</link><pubDate>Wed, 11 Dec 2019 23:38:13 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:55d19238-a33d-4044-b662-33da5b610e37</guid><dc:creator>moon.kim</dc:creator><description>&lt;p&gt;Hi&lt;/p&gt;
&lt;p&gt;so what is the accuracy of SAADC?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: SAADC accuracy of nRF52810</title><link>https://devzone.nordicsemi.com/thread/224724?ContentTypeID=1</link><pubDate>Tue, 10 Dec 2019 12:22:35 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:9fd1056a-8388-4c49-8337-6151beb55e56</guid><dc:creator>Jared</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;[quote user=""][/quote]&lt;/p&gt;
&lt;p&gt;I want to know the accuracy of SAADC.&lt;/p&gt;
&lt;p&gt;Is EG1 / 6 (+3 / -3 %)an error for SAADC?&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;The error specified in the product specification for gain = 1.6 V, means that given that a calibration has been done, a SAADC sample will be somewhere between minimum 3% less than the actual value and up to 3% more than the actual value.&lt;/p&gt;
&lt;p&gt;regards&lt;/p&gt;
&lt;p&gt;Jared&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>