The slew rate warning will compare the most recent temperature conversion result with the previous temperature conversion result. Figure 3-1 shows how the slew rate feature responds to rapid temperature change with a 1 second conversion rate. When designing with the slew rate feature, it is important to consider that the temperature sensor measuring the slew rate can only respond as fast as the conversion period. In this example the sensor reports a peak slew rate of 7.5°C/s.

With the same ambient temperature profile and a faster conversion period, the slew rate warning can yield more accurate and granular results of the ambient temperature slew profile. Figure 3-2 depicts the resulting waveform if the conversion period is adjusted to 0.5 seconds instead of 1 second. With this setting the device reports a peak of 10°C/s with the same temperature profile.