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ADS1211P IC PROBLEM IN SERIAL DATA OUT PIN NO 16

arti mishra74
Prodigy 120 points

Dear Sir,

iam working on ADS1211P IC but Iam getting SDOut Pin always '0V'.DRDY (pin no 17) iam getiing proper and SCLK is also coming,DRDY is varying according to the input coltage on (Pin 4 and 5,AinP and AinN).

Kindly tell me what will be the reason,I have check all condition?

  • 0
    TI__Guru** 113765 points

    Hi Arti,

    Most likely you have not set the SDL bit in the command register (CMR) byte 3 to high.  The startup default for this bit is low, which means SDIO is both input and output.  You much change this bit setting for the data to come out of SDOUT.  See page 19 of the datasheet for the CMR definitions.

    Best regards,

    Bob B