3.4 Low-Pass Filter

The Low-Pass Filter operating mode has two phases - a start-up phase and an operating phase. In this mode, each sample acquired causes the ADC to subtract a fraction of its current accumulation, then add the new measurement to the accumulated sum.

When the filter is starting up, the threshold interrupts are disabled to prevent negligent activation. Once the set number of samples is collected, threshold interrupts are enabled. The device data sheet and related technical documentation provide more information about the low-pass filter.