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ADS1278-HT in SPI mode

Other Parts Discussed in Thread: ADS1278

Looking for some confirmation. ADS1278 datasheet could be improved

Can anyone confirm that the DOUT pins, DOUT1 in particular, on the ADS1278 are always active and never tristate?

I do not see any mechanism, like a Chip Select pin, to make DOUT tristate.

It looks like I’ll need to use a tristate buffer on DOUT1 pin to isolate it when the SCLK is active for other devices on my SPIbus. Am I correct?