Configure the circuit as shown in Figure 8-3. Connect V_CC to a 3.3-V power supply and V_EE to ground. Make R1, R2, and R3 each 10-MΩ resistors. These three resistors are used to create the positive and negative thresholds for the window comparator (V_TH+ and V_TH–). With each resistor being equal, V_TH+ is 2.2 V and V_TH- is 1.1 V. Large resistor values such as 10 MΩ are used to minimize power consumption. The sensor output voltage is applied to the inverting and noninverting inputs of the two TLV704x devices. The TLV704x is used for its open-drain output configuration. Using the TLV704x allows the two comparator outputs to be wire-ored together. The respective comparator outputs are low when the sensor is less than 1.1 V or greater than 2.2 V. V_OUT is high when the sensor is in the range of 1.1 V to 2.2 V.