Samiha. Thanks a lot for your help. What I'm trying to do is to use a analog multiplex (either 8 or 16 inputs), feed it into RCV420 , a current to voltage converter from Texas and feed the ADC with an low pass filter. One of these inputs I was planning to measure de 5V or the final voltage range and adjust the gain by reading this data and adjusting all other channels. My question is related if this is a reasonable solution or if there is anything better I'm accepting sugestions. Thanks for your help! Andre
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