The DRDY pin is an output that transitions low to indicate when conversion data are ready for retrieval. Initially, DRDY is high at power-on. When converting, the state of DRDY depends on whether the conversion data are retrieved or not. In continuous conversion mode after DRDY goes low, DRDY is driven high on the first SCLK rising edge. If data are not read, DRDY remains low and then pulses high 24 · tCLK before the next DRDY falling edge. The data must be retrieved before the next DRDY update, otherwise the data are overwritten by new data and any previous data are lost. Figure 85 shows the DRDY operation without data retrieval. Figure 86 shows the DRDY operation with data retrieval after each conversion completes.