Hello,

I have a questions on ADE7880 neutral current mismatch feature.

Is ISUM register the 24 bits or 28 bits register?

On the data sheet, revB, page 37, it shows register ISUM is 28 bits, bit27 is the sign bit, then the real data should be 27 bits. But on page 88, registers list, it indicates that ISUM is 24 bits signed register, I assume bit 23 is the sign bit, real data then should be 23 bits. Which one is correct?

Thanks.

Karen

Hi Karens,

The ISUM register is a 28-bit signed register, therefore bit 27 is the sign bit. The table on page 88 is not correct and the description on page 37 is correct, this will be fixed in the next revision.

Regards,

Dlath