I'm a DFAE in Japan. Our customer studies AD7994 and asks some questions as follows.
1. Regarding MODE1, how long is the conversion time when the register setting [D7:4] is 1111? Our understand would be roughly 2us*4ch=8us. For details, /CONVST becomes High for 1us after that Low and tCONVERT is 2us. This operation is repeated 4 times to convert from 1ch to 4ch in the sequence. Then the total time would be (1us+2us)*4ch=12us. Is it correct?
2. Is it all right to understand that the conversion result is read twice, one byte per channel, so that in the case of 4 channels, it will be read 8 times in total?