As per the second paragraph of post 28316?
There are diode arraays designed specifically for ESD protection.
???
If we have few problems now with no protection, adding a 1k series resistor is likely sufficient.
Though if you draw sparks after walking across the rug, the voltages and currents can be disturbingly large.
Some of the ESD models assume kilovolts and amps are involved, but only for a few billionths of seconds:
Jerry
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On Thu, Jun 15, 2017 at 01:34 pm, Michael Hagen wrote:
To protect an input you can put a series resistor to limit current, then a diode on the input to +V and another to ground.
