The OPA561 operates from single (7 V to 15 V) or dual (±3.5 V to ±7.5 V) supplies with excellent performance. Power-supply voltages do not need to be equal. For example, the positive supply can be set to 10 V with the negative supply at –5 V, or vice-versa. Most behaviors remain unchanged throughout the operating voltage range. Parameters that vary significantly with operating voltage are shown in the Typical Characteristics.