How many IR receivers can I wire in parallel?

[anon57585045]

@JohnRob

I saw the max output listed at 5ma. So to get the max out I assumed 3.3v and 4ma. There is no data to predict Vcesat but I assumed getting below the 1 volt for a 3.3v Arduino is doable.

I slipped a digit in my head, 1V vs. 100mV. So yes there is more headroom for a safe input threshold. It's just impossible to eke it out of the data sheet alone.