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Please Criticise my Circuit and Layout
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Pentoad:
I've disassembled a battery from an electric car and every cell was within a millivolt. I suppose it isn't really necessary.

The LM239 chip I'm using has 4 comparators in it, one of which is unused. Is it okay just to connect its inputs and its output to ground? The output is open collector and pulls down to ground when triggered.
teksturi:

--- Quote from: Pentoad on October 24, 2019, 06:18:24 pm ---The LM239 chip I'm using has 4 comparators in it, one of which is unused. Is it okay just to connect its inputs and its output to ground? The output is open collector and pulls down to ground when triggered.

--- End quote ---

Is not ok. Especially if you connect output to ground what happend if it try to drive output to high? Read this https://www.ti.com/lit/pdf/SBOA204?jktype=tech_docs or this https://www.analogictips.com/working-op-amps-tying-floating-pins/
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