SBAS438C May 2008 – November 2019 DAC9881
The DAC9881 is designed for single-supply operation; however, a bipolar output is also possible using the circuit shown in Figure 70. This circuit gives a bipolar output voltage of VOUT. When GAIN = 1, VOUT can be calculated using Equation 2:
As an example, a ±8-V output span can be achieved by using values of 5 V, 6.25 kΩ, 16.67 kΩ, and 10 kΩ for Vref, R1, R2, and R3 respectively.