The INA185 is in normal operation when the following conditions are met:

• The power supply voltage (V_S) is between 2.7 V and 5.5 V.
• The common-mode voltage (V_CM) is within the specified range of –0.2 V to +26 V.
• The maximum differential input signal multiplied by the gain plus V_REF is less than V_S minus the output voltage swing to V_S.
• The minimum differential input signal multiplied by the gain plus V_REF is greater than the swing to GND (see the Rail-to-Rail Output Swing section).

During normal operation, these devices produce an output voltage that is the gained-up representation of the difference voltage from IN+ to IN– plus the reference voltage at V_REF.