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Discussion Starter #1 (Edited)
Folks,

I have a HALL effect sensor that is putting out 2.5-5v for current measured within 200A range (proportionally). BMS is designed to work with a different sensor, that's rated for 750A, also putting out 2.5-5v.

So I need to adjust the output from 200A sensor, so it looks like 750A one using a formula like this

Vout = (Vin - 2.5) * 0.27 + 2.5.

This is easy enough to do with Arduino, using analog I/O. I was thinking about analog way, using op-amps. Has anyone done anything like that ?
 

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