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Designing Current logger with ACS712 + AD7678 + AD8021

Can anyone advice me how to connect these 3 component to build up a PC Current logger.

  • Hi,

    Figure 21 on page 16 of the datasheet shows how to connect the AD8021 as a unity gain buffer to the AD7678 for differential signals. I'm not familiar with the ACS712 but if it's a single ended output then you can perform single ended to differential conversion as in Fig 24 on page 18.

    Best Rgds,