The amount of time required to receive data from the ADC depends on more than just the nominal data rate of the device. The data period also depends on the mode of operation and other configurations of the device. When the low-latency filter is enabled, the data settles in one data period. However, a small amount of latency exists to set up the device, calculate the conversion data from the modulator samples, and other overhead that adds time to the conversion. For this reason, the first conversion data takes longer than subsequent data conversions.
Table 13 shows the conversion times for the low-latency filter for each ADC data rate and various conversion modes.
DATA RATE(1) (SPS)
FOR CONTINUOUS CONVERSION MODE
OR SINGLE-SHOT CONVERSION MODE(2)
|SECOND AND SUBSEQUENT|
CONVERSIONS FOR CONTINUOUS