The standard way is to connect it as a unity gain buffer. Connect the non
inverting input to Gnd and connect the inverting input to the output.

On Thu, Apr 1, 2021, 5:53 AM chuckrr <chuc...@all2easy.net> wrote:

> What is standard procedure for tying off unused op-amp inputs?
>
> If for instance there is a circuit which uses only (2) of the (4)
> available op-amps in a DIP package,
> what is the normal protocol for dealing with these unused units?
>
> Can the unused inputs just be left floating?   Doing do on an LM-324 runs
> the output at around 7.45 volts
> when the chip is operating from a single 9 volt supply.   Does doing this
> draw more current than tying off inputs to GND?
>
> Thanks,    Chuck
>
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