8.4.7.6 Data Ready (DRDY)

DRDY is an output that is driven low when new conversion data are ready fir retrieval, as shown in Figure 59. When reading data in continuous mode, the read operation must be completed before four CLK periods before the next falling DRDY goes low again, or the data are overwritten with new conversion data. When reading data in command mode, the read operation can overlap the occurrence of the next DRDY without data corruption.

Figure 59. DRDY With Data Retrieval

DRDY resets high on the first falling edge of SCLK. Figure 59 and Figure 60 show the function of DRDY with and without data readback, respectively.

If data are not retrieved (no SCLK provided), DRDY pulses high for four f_CLK periods during the update time, as shown in Figure 60.

DRDY remains active when CS is high.

Figure 60. DRDY With No Data Retrieval