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ICL7660 Output Noise Reduction

using a second-order Pi filter

ICL7660 Output Noise Reduction
Some designs such as opamp-based amplifiers are sensitive to supply rail disturbances, forcing designers to keep noise levels down to their minimum. In this article, we look at suppressing the ICL7660's output noise efficiently and alongside learn how to connect the voltage converter part to the main circuit for best EMC compliance. The aim of of all is to preclude the '7660's switching currents affecting the main circuit in any way.
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