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Original question:

ADS1292: single-ended input

single-ended input

Ersin Syuleyman
Prodigy 30 points
Other Parts Discussed in Thread: ADS1292R, ADS1292, ADS1292RECG-FE

Hi,

I use amplifier circuit with ad8237 (ecg ampifier circuit example), and I want to connect this circuit to IN1P and IN2P inputs of ADS1292R, but I realized that the ampifier circuit is common mode output, but the input of ADS1292R is differential and I can't connect them together in this case. So my question is how to connect the output of the amplifier to the ADS1292?

Thanks in advance!

  • 0
    TI__Guru 56432 points

    Hello Ersin,

    Thanks for your post! 

    As the AD8237 is not a Texas Instruments device I am not familiar with it and cannot offer support.

    May I ask why you are using an amplifier before the ADS1292? There are already PGA's integrated in the device that should be able to provide any necessary gain adjustments.

    Have you seen the example circuit ADS1292RECG-FE?

    Here is the user's guide with schematic:
    www.ti.com/.../slau384a.pdf