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ADXL375 Output Data Rate vs. Current Consumption

Some may have noticed what looks like an interesting anomaly in the data sheet for the ADXL375.  On p. 9 of the data sheet, Fig. 18 shows Output Data Rate (ODR) vs. Current Consumption.  At an ODR of 1600 Hz, there seems to be a funky dip in current consumption.

This dip can be explained by a change in the ADC sample rate.  When the ODR = 50 Hz or 1600 Hz, the internal ADC sample rate is 1600 Hz.  For all other ODRs, the internal ADC sample rate is 3200 Hz.  Lower sample rate --> Lower current consumption!