JAJSF13C March 2018 – January 2019 ADS1260 , ADS1261
PRODUCTION DATA.
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The DOUT/DRDY pin is a dual-function output. The functions of this pin are data output and data ready. The functionality changes automatically based on whether a read data operation is in progress. During a read data operation, the functionality is data output. After the read operation is complete, the functionality changes to data ready.
In data output mode, data are updated on the SCLK rising edge, therefore the host latches the data on the falling edge of SCLK. In data-ready mode, the pin functions the same as DRDY (if CS is low) by asserting low when data are ready. Therefore, monitor either DOUT/DRDY or DRDY to determine when data are ready. When CS is high, the DOUT/DRDY pin is in the high-impedance mode (tri-state).