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ADC128S052-Q1: data read by ADC128S052-Q1

Part Number: ADC128S052-Q1

Dear TI Experts

 I am now using ADC128S052-Q1 and  meet with a problem needs your help:

      If I send 001 (Channel 1) first , and then  send 005 (Channel 5) ; I would like to know the data sent back is Channel 1 or Channel 5?

In fact,The data read back is always  the value of the previous channel. Is it normal?

  • Hello,

    Are the commands you wrote in hex?To change the channel register, the following register commands in the image below need to be followed.

    Thus for channel 1, the command would be: 0000 1000, or in hex : 08h

    for channel five it would be: 0010 1000, or in hex: 28h

    The timing of the device is shown below.

    in the first set of 16 SCLK pulses, the SDI will tell the device to sample Channel n, in the next set of 16 sclk pulses, the data for Channel n will be available.

    Regards

    Cynthia