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how to select  right type CDC for proximity motion detect for human leg

Question asked by taurus on Jul 18, 2014
Latest reply on Aug 19, 2014 by seanbrown

Dear .

  we have a  advance project for  sensing human proximity to vehicle trunk application.   similar BMW smart trunk open trunk application.

1.   how to choice below ic for this appliction?  we want use  earth ground.    single electron pole.



AD7150Reference Circuit Available12200 SPS20.43 mW10 pF4 pF$1.37
AD7746Reference Circuit Available2490 SPS24.25 mW174$5.01
AD7745Reference Circuit Available2490 SPS14.25 mW17 pF4 pF$4.66