Connecting both pins together and then to a reference voltage results in an output voltage equal to the reference voltage for the condition of shorted input pins or a 0-V differential input. Figure 8-7 shows this configuration. The output voltage decreases below the reference voltage when the IN+ pin is negative relative to the IN– pin, and increases when the IN+ pin is positive relative to the IN– pin. This technique is the most accurate way to bias the output to a precise voltage.

Figure 8-7 External Reference Output