Hi everyone,
i currently working on design for sensing a metal with LDC0851. My problems is this: Output on LDC0851 is normal high, when I get close with metal bar or rod, it goes down to logic low, like it should. But when the metal rod is removed the output stays low. Why is that ? It should go back to logic high.
My design is from datasheet and from proto test board LDC0851EVM.
Design details: Working voltage - 1.8 V, Coil (Stacked 4 layer, 20mm diameter, Adj Value = 0, trace width 10 mils, Capacitor=68pF, 16 turns,)
Detection distance should be around 3 mm to 5 mm.
Please for some help.