Pressure Sensor problem

so have low pressure sensor (npc-1210) , followed schematic given me ge website (http://www.ge-mcs.com/en/pressure-mems/mems-sensors/npc-1210.html [under specifications tab]). have connected breadboard , have connections right, have used lm6132 op amp amplify output. problem have there 2 vouts, +ve , -ve, , wondering one should connect analog pin of board. using arduino mega 2560. on this?

i expect connect - side ground , + side analog input.

the 2560 can configure pairs of analog inputs in differential mode:

"the device supports 16/32 differential voltage input combinations. 4 of differential inputs (adc1 & adc0, adc3 & adc2, adc9 & adc8 , adc11 & adc10) equipped programmable gain stage, providing amplification steps of 0 db (1×), 20 db (10×) or 46 db (200×) on differential input voltage before adc conversion. 16 channels split in 2 sections of 8 channels in each section 7 differential analog input channels share common negative terminal (adc1/adc9), while other adc input in section can selected positive input terminal. if 1× or 10× gain used, 8 bit resolution can expected. if 200× gain used, 7 bit resolution can expected."

you have learn how manipulate hardware registers set if can't find pre-written library it.  connect - side negative input , + side positive input.

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