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ADS1292: Offset between lead-I and Lead-II

Sumit Ranjan Chakraborty
Prodigy 21 points
Part Number: ADS1292

Tool/software:

Dear Concern,

We were thinking to use ADS1292 for one of our products. Everything is working fine. But we are facing issues to remove the DC offset. It will be really helpful if we get support regarding this as we are thinking to switch from the other supplier.

1. Here I've attached the screenshot of Lead-I and Lead-II:

2. We are testing with two simulators.

    a) With CONTEC MS400 Lead-I and Lead-II signals overlap with each other.

    b) With Fluke PS410 the offset shown above is created.

3. The register configurations are as below:

ADS1292R_REG(ADS1292R_WREG|ADS1292R_CONFIG1, 0x02);

ADS1292R_REG(ADS1292R_WREG|ADS1292R_CONFIG2, 0xE0);

ADS1292R_REG(ADS1292R_WREG|ADS1292R_LOFF, 0xF0);

ADS1292R_REG(ADS1292R_WREG|ADS1292R_CH1SET, 0x00);

ADS1292R_REG(ADS1292R_WREG|ADS1292R_CH2SET, 0x00);

ADS1292R_REG(ADS1292R_WREG|ADS1292R_RLD_SENS, 0x2C);

ADS1292R_REG(ADS1292R_WREG|ADS1292R_LOFF_SENS, 0x0F);

ADS1292R_REG(ADS1292R_WREG|ADS1292R_LOFF_STAT, 0x00);

ADS1292R_REG(ADS1292R_WREG|ADS1292R_RESP1, 0x02);

ADS1292R_REG(ADS1292R_WREG|ADS1292R_RESP2, 0x03);

ADS1292R_REG(ADS1292R_WREG|ADS1292R_GPIO, 0x0C);