ULC1001: VSNS_Gain Parameter

Hi 

VSNS_GAIN = Rf / (R1 × R3 × R3 × ((1/R1) + (1/R2) + (1/R3)) in the ULC1001 datasheet.

When I compare the VSNS_GAIN value entered with the R1, R2, R3, and Rf values indicated in Table 8-6 of the data sheet and the result of my calculation and simulation of the amplifier gain in the circuit, the gain value does not match.

I wonder what the VSNS_GAIN dimension means. Additionally, I wonder why R3 is multiplied twice in the VSNS_GAIN dimensioning formula.