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	<title>Mastering Electronics Design&#187; summing amplifier examples</title>
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	<link>http://MasteringElectronicsDesign.com</link>
	<description>Electronics Design and Modeling with Emphasis on Analog Design</description>
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		<title>Using the Summing Amplifier as an Average Amplifier</title>
		<link>http://MasteringElectronicsDesign.com/using-the-summing-amplifier-as-an-average-amplifier/</link>
		<comments>http://MasteringElectronicsDesign.com/using-the-summing-amplifier-as-an-average-amplifier/#comments</comments>
		<pubDate>Sun, 04 Jul 2010 00:28:07 +0000</pubDate>
		<dc:creator>Adrian S. Nastase</dc:creator>
				<category><![CDATA[Analog Design]]></category>
		<category><![CDATA[Electronic Circuits Examples]]></category>
		<category><![CDATA[Summing Amplifier]]></category>
		<category><![CDATA[Waveforms]]></category>
		<category><![CDATA[op amp]]></category>
		<category><![CDATA[op amp (opamp) formulas]]></category>
		<category><![CDATA[operational amplifier]]></category>
		<category><![CDATA[summing amplifier examples]]></category>
		<category><![CDATA[summing amplifier formula]]></category>
		<category><![CDATA[waveform]]></category>

		<guid isPermaLink="false">http://masteringelectronicsdesign.com/?p=1539</guid>
		<description><![CDATA[The summing amplifier can output the average of two, three or more signals. This is different than a signal average. The summing amplifier cannot, for example, output the average of a triangle signal. For that, you need an integrator to perform the average in the analog realm, or you need to sample the signal and calculate the average with a microcontroller. This type of average is the signal average in the time domain. I will write an article about the average of a signal in a near future.


Related posts:<ol><li><a href='http://MasteringElectronicsDesign.com/the-transfer-function-of-the-summing-amplifier-with-n-input-signals/' rel='bookmark' title='Permanent Link: The Transfer Function of the Non-Inverting Summing Amplifier with “N” Input Signals'>The Transfer Function of the Non-Inverting Summing Amplifier with “N” Input Signals</a></li><li><a href='http://MasteringElectronicsDesign.com/design-bipolar-unipolar-converter-with-3-input-summ-amplifier/' rel='bookmark' title='Permanent Link: Design a Bipolar to Unipolar Converter with a 3-input Summing Amplifier'>Design a Bipolar to Unipolar Converter with a 3-input Summing Amplifier</a></li><li><a href='http://MasteringElectronicsDesign.com/how-to-derive-the-transfer-function-of-the-inverting-summing-amplifier/' rel='bookmark' title='Permanent Link: How to Derive the Transfer Function of the  Inverting Summing Amplifier'>How to Derive the Transfer Function of the  Inverting Summing Amplifier</a></li></ol>]]></description>
		<wfw:commentRss>http://MasteringElectronicsDesign.com/using-the-summing-amplifier-as-an-average-amplifier/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Design a Bipolar to Unipolar Converter with a 3-input Summing Amplifier</title>
		<link>http://MasteringElectronicsDesign.com/design-bipolar-unipolar-converter-with-3-input-summ-amplifier/</link>
		<comments>http://MasteringElectronicsDesign.com/design-bipolar-unipolar-converter-with-3-input-summ-amplifier/#comments</comments>
		<pubDate>Sun, 31 Jan 2010 05:08:07 +0000</pubDate>
		<dc:creator>Adrian S. Nastase</dc:creator>
				<category><![CDATA[Analog Design]]></category>
		<category><![CDATA[Electronic Circuits Examples]]></category>
		<category><![CDATA[Summing Amplifier]]></category>
		<category><![CDATA[amplifier]]></category>
		<category><![CDATA[bipolar]]></category>
		<category><![CDATA[converter]]></category>
		<category><![CDATA[non-inverting]]></category>
		<category><![CDATA[op amp]]></category>
		<category><![CDATA[operational amplifier]]></category>
		<category><![CDATA[summing amplifier examples]]></category>
		<category><![CDATA[unipolar]]></category>

		<guid isPermaLink="false">http://masteringelectronicsdesign.com/?p=1239</guid>
		<description><![CDATA[Since the publication of Design a Bipolar to Unipolar Converter to Drive an ADC, several readers contacted me with requests to help in solving their particular converter. The common problem they had was the fact that the components’ calculation resulted in a negative value for at least one resistor.

To provide a solution, first we need to understand the root cause of the problem. Let’s take one of the circuits I received and analyze it.

The reader wrote that he would like to drive an ADC with the input range of 0 to 2.5V from a signal with the range of –5V to +5V, connected at V1.


Related posts:<ol><li><a href='http://MasteringElectronicsDesign.com/design-a-unipolar-to-bipolar-converter-for-a-unipolar-voltage-output-dac/' rel='bookmark' title='Permanent Link: Design a Unipolar to Bipolar Converter for a Unipolar Voltage Output DAC'>Design a Unipolar to Bipolar Converter for a Unipolar Voltage Output DAC</a></li><li><a href='http://MasteringElectronicsDesign.com/design-a-bipolar-to-unipolar-converter/' rel='bookmark' title='Permanent Link: Design a Bipolar to Unipolar Converter to Drive an ADC'>Design a Bipolar to Unipolar Converter to Drive an ADC</a></li><li><a href='http://MasteringElectronicsDesign.com/bipolar-to-unipolar-converter-examples/' rel='bookmark' title='Permanent Link: Bipolar to Unipolar Converters Based on a Summing Amplifier Configuration'>Bipolar to Unipolar Converters Based on a Summing Amplifier Configuration</a></li></ol>]]></description>
		<wfw:commentRss>http://MasteringElectronicsDesign.com/design-bipolar-unipolar-converter-with-3-input-summ-amplifier/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Bipolar to Unipolar Converters Based on a Summing Amplifier Configuration</title>
		<link>http://MasteringElectronicsDesign.com/bipolar-to-unipolar-converter-examples/</link>
		<comments>http://MasteringElectronicsDesign.com/bipolar-to-unipolar-converter-examples/#comments</comments>
		<pubDate>Mon, 28 Dec 2009 06:49:39 +0000</pubDate>
		<dc:creator>Adrian S. Nastase</dc:creator>
				<category><![CDATA[Analog Design]]></category>
		<category><![CDATA[Electronic Circuits Examples]]></category>
		<category><![CDATA[Summing Amplifier]]></category>
		<category><![CDATA[bipolar]]></category>
		<category><![CDATA[converter]]></category>
		<category><![CDATA[op amp]]></category>
		<category><![CDATA[operational amplifier]]></category>
		<category><![CDATA[summing amplifier examples]]></category>
		<category><![CDATA[unipolar]]></category>

		<guid isPermaLink="false">http://masteringelectronicsdesign.com/?p=1044</guid>
		<description><![CDATA[In a previous article I presented a method for designing a bipolar to unipolar converter using a summing amplifier.  In this article I am going to show more examples of bipolar to unipolar converters which are based on a summing amplifier configuration.  You can adapt them to your needs if you use the method I described in the previous article.


Related posts:<ol><li><a href='http://MasteringElectronicsDesign.com/design-bipolar-unipolar-converter-with-3-input-summ-amplifier/' rel='bookmark' title='Permanent Link: Design a Bipolar to Unipolar Converter with a 3-input Summing Amplifier'>Design a Bipolar to Unipolar Converter with a 3-input Summing Amplifier</a></li><li><a href='http://MasteringElectronicsDesign.com/design-a-unipolar-to-bipolar-converter-for-a-unipolar-voltage-output-dac/' rel='bookmark' title='Permanent Link: Design a Unipolar to Bipolar Converter for a Unipolar Voltage Output DAC'>Design a Unipolar to Bipolar Converter for a Unipolar Voltage Output DAC</a></li><li><a href='http://MasteringElectronicsDesign.com/design-a-bipolar-to-unipolar-converter/' rel='bookmark' title='Permanent Link: Design a Bipolar to Unipolar Converter to Drive an ADC'>Design a Bipolar to Unipolar Converter to Drive an ADC</a></li></ol>]]></description>
		<wfw:commentRss>http://MasteringElectronicsDesign.com/bipolar-to-unipolar-converter-examples/feed/</wfw:commentRss>
		<slash:comments>4</slash:comments>
		</item>
		<item>
		<title>Design a Bipolar to Unipolar Converter to Drive an ADC</title>
		<link>http://MasteringElectronicsDesign.com/design-a-bipolar-to-unipolar-converter/</link>
		<comments>http://MasteringElectronicsDesign.com/design-a-bipolar-to-unipolar-converter/#comments</comments>
		<pubDate>Mon, 26 Oct 2009 06:50:56 +0000</pubDate>
		<dc:creator>Adrian S. Nastase</dc:creator>
				<category><![CDATA[Analog Design]]></category>
		<category><![CDATA[Electronic Circuits Examples]]></category>
		<category><![CDATA[Mixed-Signal Design]]></category>
		<category><![CDATA[Summing Amplifier]]></category>
		<category><![CDATA[ADC]]></category>
		<category><![CDATA[analog to digital converters]]></category>
		<category><![CDATA[bipolar]]></category>
		<category><![CDATA[op amp]]></category>
		<category><![CDATA[operational amplifier]]></category>
		<category><![CDATA[summing amplifier examples]]></category>
		<category><![CDATA[unipolar]]></category>

		<guid isPermaLink="false">http://masteringelectronicsdesign.com/?p=908</guid>
		<description><![CDATA[Most ADCs have a unipolar input range that can be a problem when designing bipolar circuits.  Some common ADC input voltage ranges are 0 to 2.5 V, or 0 to 5 V.  However, the analog circuit that drives the ADC can have voltage swings of, –1 V to +1 V, –2 V to +2 V , –5 V to +5 V, and so on.  Bringing the ADC input below ground is a big No-No, because the current from input will flow through the chip substrate creating irreversible changes in the ADC and damage it.  So, how do we connect a bipolar front end circuit with a unipolar ADC?  Enters the bipolar to unipolar converter.  Let’s design one.


Related posts:<ol><li><a href='http://MasteringElectronicsDesign.com/design-a-unipolar-to-bipolar-converter-for-a-unipolar-voltage-output-dac/' rel='bookmark' title='Permanent Link: Design a Unipolar to Bipolar Converter for a Unipolar Voltage Output DAC'>Design a Unipolar to Bipolar Converter for a Unipolar Voltage Output DAC</a></li><li><a href='http://MasteringElectronicsDesign.com/design-bipolar-unipolar-converter-with-3-input-summ-amplifier/' rel='bookmark' title='Permanent Link: Design a Bipolar to Unipolar Converter with a 3-input Summing Amplifier'>Design a Bipolar to Unipolar Converter with a 3-input Summing Amplifier</a></li><li><a href='http://MasteringElectronicsDesign.com/bipolar-to-unipolar-converter-examples/' rel='bookmark' title='Permanent Link: Bipolar to Unipolar Converters Based on a Summing Amplifier Configuration'>Bipolar to Unipolar Converters Based on a Summing Amplifier Configuration</a></li></ol>]]></description>
		<wfw:commentRss>http://MasteringElectronicsDesign.com/design-a-bipolar-to-unipolar-converter/feed/</wfw:commentRss>
		<slash:comments>8</slash:comments>
		</item>
		<item>
		<title>Differential Output Circuit</title>
		<link>http://MasteringElectronicsDesign.com/differential-output-circuit/</link>
		<comments>http://MasteringElectronicsDesign.com/differential-output-circuit/#comments</comments>
		<pubDate>Sun, 30 Aug 2009 06:54:18 +0000</pubDate>
		<dc:creator>Adrian S. Nastase</dc:creator>
				<category><![CDATA[Analog Design]]></category>
		<category><![CDATA[Differential Amplifier]]></category>
		<category><![CDATA[Electronic Circuits Examples]]></category>
		<category><![CDATA[Summing Amplifier]]></category>
		<category><![CDATA[amplifier]]></category>
		<category><![CDATA[operational amplifier]]></category>
		<category><![CDATA[summing amplifier examples]]></category>

		<guid isPermaLink="false">http://masteringelectronicsdesign.com/?p=607</guid>
		<description><![CDATA[What is this circuit good for? It creates a single-ended-input-differential-output amplifier, in which VCM is the common mode and the main signal, in this case the average (VA+VB)/2 rides on top of VCM.  It is very useful for fully differential circuits in low noise applications, because differential amplifiers help reduce the common mode noise.  VCM in this case, sets the common mode to a useful level as required by the design.


Related posts:<ol><li><a href='http://MasteringElectronicsDesign.com/differential-amplifier-output-common-mode-voltage-calculator/' rel='bookmark' title='Permanent Link: Differential Amplifier Output Common-Mode Voltage Calculator'>Differential Amplifier Output Common-Mode Voltage Calculator</a></li><li><a href='http://MasteringElectronicsDesign.com/how-to-design-a-circuit-from-its-transfer-function-graph/' rel='bookmark' title='Permanent Link: How to Design a Circuit from its Transfer Function Graph'>How to Design a Circuit from its Transfer Function Graph</a></li><li><a href='http://MasteringElectronicsDesign.com/a-summing-and-differential-amplifier-with-one-op-amp/' rel='bookmark' title='Permanent Link: A Summing and Differential Amplifier with One Op Amp'>A Summing and Differential Amplifier with One Op Amp</a></li></ol>]]></description>
		<wfw:commentRss>http://MasteringElectronicsDesign.com/differential-output-circuit/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Solving the Summing Amplifier</title>
		<link>http://MasteringElectronicsDesign.com/solving-the-summing-amplifier/</link>
		<comments>http://MasteringElectronicsDesign.com/solving-the-summing-amplifier/#comments</comments>
		<pubDate>Thu, 18 Jun 2009 05:06:22 +0000</pubDate>
		<dc:creator>Adrian S. Nastase</dc:creator>
				<category><![CDATA[Analog Design]]></category>
		<category><![CDATA[Summing Amplifier]]></category>
		<category><![CDATA[non-inverting]]></category>
		<category><![CDATA[operational amplifier]]></category>
		<category><![CDATA[summing amplifier examples]]></category>
		<category><![CDATA[summing amplifier formula]]></category>

		<guid isPermaLink="false">http://masteringelectronicsdesign.com/?p=339</guid>
		<description><![CDATA[This article describes how to design a summing amplifier based on the input and output requirements.


Related posts:<ol><li><a href='http://MasteringElectronicsDesign.com/solving-the-differential-amplifier-part-1/' rel='bookmark' title='Permanent Link: Solving the Differential Amplifier &#8211; Part 1'>Solving the Differential Amplifier &#8211; Part 1</a></li><li><a href='http://MasteringElectronicsDesign.com/solving-the-differential-amplifier-part-2/' rel='bookmark' title='Permanent Link: Solving the Differential Amplifier – Part 2'>Solving the Differential Amplifier – Part 2</a></li><li><a href='http://MasteringElectronicsDesign.com/solving-the-differential-amplifier-part-3/' rel='bookmark' title='Permanent Link: Solving the Differential Amplifier &#8211; Part 3'>Solving the Differential Amplifier &#8211; Part 3</a></li></ol>]]></description>
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		<slash:comments>9</slash:comments>
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