The LDC0851 includes hysteresis for the switching threshold. The switch point is determined by the inductance ratio between LSENSE and LREF. When the ratio of LSENSE to LREF drops below 99.6%, the device switches ON (output low). When LSENSE/LREF becomes greater than 100.4% it switches OFF (output high). The hysteresis window is therefore specified 0.8% from the switch ON point.

Figure 6-6 Inductance Hysteresis

For proximity sensing, hysteresis may also be approximated in terms of distance as shown in Figure 6-7.

Figure 6-7 Switching Distance Hysteresis and Threshold Tolerance