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AD7147 threshold

Question asked by denisej199 on Nov 28, 2017
Latest reply on Nov 29, 2017 by Maurice

Using the AD7147 to detect a button press, I notice that if an object (such as a hand) slowly moves toward the button, the threshold increases, and if the object slowly moved away, the threshold decreases.  But if the hand is moved away quickly, the threshold stays at the higher value (all of this without exceeding the threshold).  This causes a problem because the threshold is then too high to every trigger sensor activation.  How can I configure the chip to decrease the thresholds even with quick motions?