[SOLVED] How to terminate unused Touch sensor pin - TTP224

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papaisou11

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Hi all,
I am not sure if it is the correct place to post, as it is analog circuit, I thought here to post it.

I am designing a circuit where 3 capacitive touch input is required. I found TTP224 is reasonable for me. However, the problem is It has 4 Touch input. Can any one suggest me what is the best way to terminate the fourth touch input? I found that if I leave it floating, it is in most sensitive condition. I am thinking to use the high rated capacitor of 100pF with GND to terminate it. Is this right process to do it?

Thanks to all.
 

Hi,

not explicitely mentioned...

I´d omit the pad ... and set the senstivity to minimal

Klaus
 
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