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	<title>common-mode &#8211; Mastering Electronics Design</title>
	<atom:link href="https://masteringelectronicsdesign.com/tag/common-mode-voltage/feed/" rel="self" type="application/rss+xml" />
	<link>https://masteringelectronicsdesign.com</link>
	<description>Electronics Design and Modeling with Emphasis on Analog Design</description>
	<lastBuildDate>Wed, 27 Aug 2014 03:56:45 +0000</lastBuildDate>
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		<title>Differential Amplifier Output Common-Mode Voltage Calculator</title>
		<link>https://masteringelectronicsdesign.com/differential-amplifier-output-common-mode-voltage-calculator/</link>
					<comments>https://masteringelectronicsdesign.com/differential-amplifier-output-common-mode-voltage-calculator/#comments</comments>
		
		<dc:creator><![CDATA[Adrian S. Nastase]]></dc:creator>
		<pubDate>Sun, 28 Feb 2010 23:47:20 +0000</pubDate>
				<category><![CDATA[Analog Design]]></category>
		<category><![CDATA[Calculators]]></category>
		<category><![CDATA[Differential Amplifier]]></category>
		<category><![CDATA[amplifier]]></category>
		<category><![CDATA[calculator]]></category>
		<category><![CDATA[common-mode]]></category>
		<category><![CDATA[op amp]]></category>
		<category><![CDATA[operational amplifier]]></category>
		<guid isPermaLink="false">http://masteringelectronicsdesign.com/?p=1314</guid>

					<description><![CDATA[A differential amplifier frequent use is the amplification of the voltage difference between its input signals, while rejecting the common-mode level.  However, the output common-mode level cannot be zero.  The operational amplifier technological limitations, as well as the outside resistor tolerances let the common-mode voltage to make it to the amplifier output as an output error.  As a consequence, the amplifier output voltage is the input signal difference times gain, plus the output common-mode voltage.

Based on the resistor tolerances, this calculator will show the output common-mode voltage, Vocm, and the total voltage, Vout, at the differential amplifier output.  Vocm will alter the ideal output voltage, which can be calculated when the resistors are perfectly matched.]]></description>
		
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			<slash:comments>6</slash:comments>
		
		
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		<item>
		<title>The Differential Amplifier Common-Mode Error – Part 2</title>
		<link>https://masteringelectronicsdesign.com/the-differential-amplifier-common-mode-error-part-2/</link>
					<comments>https://masteringelectronicsdesign.com/the-differential-amplifier-common-mode-error-part-2/#comments</comments>
		
		<dc:creator><![CDATA[Adrian S. Nastase]]></dc:creator>
		<pubDate>Mon, 08 Jun 2009 01:24:55 +0000</pubDate>
				<category><![CDATA[Analog Design]]></category>
		<category><![CDATA[Differential Amplifier]]></category>
		<category><![CDATA[Power Supply]]></category>
		<category><![CDATA[amplifier]]></category>
		<category><![CDATA[common-mode]]></category>
		<category><![CDATA[operational amplifier]]></category>
		<guid isPermaLink="false">http://masteringelectronicsdesign.com/?p=300</guid>

					<description><![CDATA[When designing a differential amplifier, part of the art is to manage the errors affecting the precision of the circuit.  In The Differential Amplifier Common-Mode Error - Part 1 of this presentation I discussed the common-mode error of a differential amplifier.  I also showed that, given the circuit in Figure 1, the common-mode voltage can be viewed as V2, when we consider V1-V2 as a signal that rides on top of V2.  The same goes for V1, which can be considered the common-mode voltage of the differential amplifier when -(V1-V2) is the signal that rides on top of V1.]]></description>
		
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			<slash:comments>13</slash:comments>
		
		
			</item>
		<item>
		<title>The Differential Amplifier Common-Mode Error – Part 1</title>
		<link>https://masteringelectronicsdesign.com/the-differential-amplifier-common-mode-error-part-1/</link>
					<comments>https://masteringelectronicsdesign.com/the-differential-amplifier-common-mode-error-part-1/#comments</comments>
		
		<dc:creator><![CDATA[Adrian S. Nastase]]></dc:creator>
		<pubDate>Thu, 21 May 2009 03:13:56 +0000</pubDate>
				<category><![CDATA[Analog Design]]></category>
		<category><![CDATA[Differential Amplifier]]></category>
		<category><![CDATA[Superposition Theorem]]></category>
		<category><![CDATA[amplifier]]></category>
		<category><![CDATA[common mode rejection]]></category>
		<category><![CDATA[common mode rejection ratio]]></category>
		<category><![CDATA[common-mode]]></category>
		<category><![CDATA[operational amplifier]]></category>
		<guid isPermaLink="false">http://masteringelectronicsdesign.com/?p=219</guid>

					<description><![CDATA[The common-mode voltage can bring errors in the differential amplifier applications.  What is the common-mode voltage?  The common-mode voltage is the voltage level common to both inverting and non-inverting inputs of the differential amplifier.  In many applications, the differential amplifier is used to amplify the difference between two voltages, for later processing, or to isolate a signal from common-mode noise, or to amplify a signal that rides on top of some large voltage level.  If the common-mode voltage is not rejected, it appears as an error at the amplifier output.]]></description>
		
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			<slash:comments>11</slash:comments>
		
		
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