The input circuitry of the INA1x8-Q1 can accurately measure beyond the power-supply voltage, V+. For example, the V+ power supply can be 5 V, whereas the load power-supply voltage goes up to 36 V with the INA138-Q1, or 60 V with the INA168-Q1. However, the output voltage range of the OUT pin is limited by the lesser of the two voltages (see the Output Voltage Range section). Place a 0.1-µF capacitor near the power-supply pin on the INA1x8-Q1. Additional capacitance may be required for applications with noisy power-supply voltages.