The OPA928 is specified for operation from 4.5V to 36 (±2.25V to ±18V). The OPA928 features a high power-supply rejection ratio (PSRR) and significantly reduces power supply errors at dc. However, a decreasing PSRR at high frequencies means that high-frequency components in the power supply, such as noise, can be coupled to the output. Use a linear, low-noise power supply to optimize noise performance. Place 0.1μF bypass capacitors close to the power-supply pins to further reduce errors coupling in from the power supplies. For more detailed information on bypass capacitor placement, see Section 7.4. Switching power supplies generate switching noise that can manifest at the output of the OPA928. When switching power supplies cannot be avoided, use proper filtering and a low-dropout regulator to attenuate the switching noise and respective harmonics to an acceptable level.