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AMC1106M05: configuration of shunt resistor

Part Number: AMC1106M05

Hello Team, my customer needs support on shunt resistor configuration

Target is to achieve a measurement range of +/-350A-p (referred to +/-64mV). Shunt selection is difficult because only certain standard values are available. (100/200/300/500uOhm).

For this purpose a 180uOhm would be a perfect fit but preferred is 200uOhm (simpler available). But this means using a voltage divider of 10/90 ratio in front of the input stage.

Now the question:

- In the datasheet there is an input resistor of 4.9kOhm specified. Can this one be used with a 270 Ohm resistor on each input (560Ohm total)?

- Is the accuracy/tolerance of this 4.9kOhm in range of <1%?

- Or is it better to put 560 Ohm at AINP and AINN on GND?

- Other solution would be with a real voltage divider such as 1+20+1 Ohm and connect 20 Ohm at AINP/N?

Many Thanks for any proposal or other ideas to simplify the shunt resistor selection