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ADS7044: Data output vs Acquisition

Part Number: ADS7044
Other Parts Discussed in Thread: ADS7054

Tool/software:

Hello support,

I am working on two projects using ADS70xx family.

- project 1: using ADS7044 (12 bits)

- project 2: using ADS7054 (14 bits)

I would like to clarify what is the data output when performing a single cycle, because this is explained differaly between the two datasheet:

ADS7044:

ADS7054:

Can you confirm whether the data output during cycle N for ads7044 is the data from sample N, and whether the data output during cycle A for ads7054 is the data from the previous sample (A-1) ? If this is the case, it means that both device works differently:

for the ads7044, the latest data can be obtained by running only one cycle.

for the ads7054, the latest data can be obtained by running two cycles: the first for acquisition and the second for sending the data.

thank you,

  • Hi Clement,

    Yes, you are completely correct. With the ADS7044, on conversion cycle N, the data output on SDO will contain sample N. With the ADS7054, on conversion cycle N, the data output on SDO will contain sample N-1.

    Regards,
    Joel