The summing amplifier is configured from an op-amp. What is 5,592 + 9,861? And that’s how my mind goes blank. Mental arithmetic was never my forte, despite being in the engineering profession. Instead, I relied on one of man’s greatest inventions, the calculator, as I struggled thro...
Input -1V to +1V, Output 0V to +5V, Reference voltage +2.5V Figure 6 (This article was viewed 15,053 times) Related Posts Design a Bipolar to Unipolar Converter to Drive an ADC Design a Unipolar to Bipolar Converter for a Unipolar Voltage Output DAC Summing Amplifier Calculator...
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I explained the first method in this article,How to Design a Summing Amplifier Calculator. Essentially, one needs to decrease the reference voltage to bring R4 into the positive realm. Read that article for more details. Let’s talk about the second method. We will use a 3-input non-inver...
The Op Amp is considered an ideal component, so that the input bias currents are negligible. If the current in the non-inverting input is zero, R1 and R2 make a voltage divider for V1. The non-inverting input voltage V1n, can be written as ...