AD7147: Can I use it to  detect  the  hand at 10cm away  from the  button?

Document created by analog-archivist Employee on Feb 23, 2016
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Is  it  possible  to use  the AD7147 for  an approximation, I  want  to 
detect  the  hand at 10cm away  from the  button?

 

The proximity detection range for AD7147 is up to 2cm.  Getting a detection
distance of 10cm is not possible with the cap touch parts AD7147/8. We have
other parts which offer more proximity distance range, AD7150/1 have 1 or 2
channels which can be dedicated to implement proximity detection with a range
of up to 5cm.
The range of the AD7150 is dependent on the actual sensor design/size/shape so
it may be possible to extend the range with large sensor.

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