The Transfer Function of the Non-Inverting Summing Amplifier with “N” Input Signals
Sunday, August 9th, 2009Summary:
In a previous article, How to Derive the Summing Amplifier Transfer Function, I deduced the formula for the non-inverting summing amplifier with two signals in its input. But what if we have 3, 4 or an n number of signals? Can we add them all with one amplifier?
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How to Derive the Summing Amplifier Transfer Function
Thursday, July 9th, 2009Summary:
The summing amplifier, or the non-inverting summing amplifier, is an analog processing circuit with the transfer function (the summing amplifier formula as some say) shown in the following equation.
(1)
The first term of the product is the actual summing, while the second term is a gain due to the R3 and R4 resistors. I prefer this [...]
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Summary:
This article describes how to design a summing amplifier based on the input and output requirements.
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EDN's Design Ideas New Operational Amplifiers – Analog Devices
