DRV8305-Q1: Calculation of output of current shunt amplifier

Tool/software:

Dear TI experts,

My customer wants to calculate the output of current shunt amplifier based on the equation in the datasheet. (page 25)

My customer set the variants as below ;

V_vref = 5V (same as VREF)

K = 2 (offset)

G = 10 (gain setting)

SNx-SPx = 1mV (actually measured value)

And by the equation, Vo = (5/2)-(10*(0.001)) = 2.49V.

But by actual measurement, they measured 3.7V.

Are there anything which I missed for exact calculation? Please let me know.

Best regards,

Chase