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Find highest value of 4 inputs without microcontroller?
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not1xor1:

--- Quote from: T3sl4co1l on November 20, 2018, 05:13:03 pm ---^ ;D

A perfectly fine application of the TL431, knowing that it is, in fact, an op-amp with a shortage of pins, an open-collector output, and a disturbingly large yet conspicuously stable (2.50V) input offset voltage. :)

Would also need the high side level translation, and would benefit from a low side CCS, but technically uses fewer pins than the LM324. :)

Tim

--- End quote ---

Probably the LM385-adj would work as well, with ground referenced output and finding the lowest output.
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