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ADS1298RECGFE-PDK DB15 input diagram

mahir rahman
Intellectual 350 points

Other Parts Discussed in Thread: ADS1298RECGFE-PDK, ADS1298R, ADS1298

Dear all,

Hoping my e-mail finds you fine...

Kindly asking for the input diagram of the BD15 connector of the evaluation kit ADS1298RECGFE-PDK.

 I am planning to use this kit as a high speed and high precision ADC for 8 separate input signals to be fed directly to the DB15 connector instead of the 8 differential inputs to reduce the errors and size.

Hoping to receive your kind support asap.

Yours truly,

Mahir

  • 0
    TI__Guru**** 183421 points

    Hi Mahir,

    The schematic diagram of the DB15 in the ADS1298RECGFE-PDK in located in the back of the Users Guide (attached for your reference).  The wiring of the DB15 uses eight inputs to the (+) terminals of the ADS1298R with the (-) terminals being fed from the WCT via the jumper blocks JP26 through JP33.  The exception here is with CH2 and CH3, the (-) terminals on these channels connect to ECG_RA.

    6622.ADS1298RUG_sbau181.pdf

  • 0 in reply to Tom Hendrick
    Intellectual 350 points

    Hi Tom,

    Thanks for your kind information, I checked the Users Guide and it is rather difficult!!!

    I am wondering if WCT can be disabled completely and the 8 signals we have are fed directly through the DB15 as these 8 signals have a common negative signal. so that we can use the same ECG software to monitor thse signals and making proper analysis.

    Best Regards


    Mahir

     

  • 0 in reply to mahir rahman
    TI__Guru**** 183421 points

    Hi Mahir,

    You may have noticed JP16 in the schematic (page 77 of the document I mentioned), that jumper brings the WCT out of the ADS1298 and into the various (-) inputs.  You can simply remove that jumper and tie your common (-) signal there.  That signal would also go to the ECG_RA input which is pin 9 of the DB15.