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Hello Team,
In INA220 datasheet, i find the ciurcits to detect 48V and -48V are very different, can you tell me the reason? And why we need to put an operational amplifier before our part when to detect 48V system? thanks
Regards,
Nanfang
Hi Nanfang,
We have 2 TI Design documents that explain these two approached on detail.
For the 48V refer to: 
For the -48V refer to:
Regards,
