The NF LP539x Series Ultra-low Noise DC Power Supply provides output voltage with extremely low levels of noise. The main unit is shielded and shielded connectors and cables are used to prevent the emission of internal noise as well as prevent external noise from affecting the signal. The combination of all these technologies results in a DC power supply that produces output with a superior level of low noise. The output noise voltage is at most 10μVrms. This represents the highest standard of low-noise DC power supplies at reasonable prices. Additionally, low-noise and highly stable reference voltage sources are incorporated to achieve a level of temperature stability higher than conventional DC power supplies by a factor of 5 to 10. By eliminating wasted time in efforts to reduce noise, the LP539x Series are perfect for research and development environments that use batteries or internally developed power supplies to prevent power supply noise from affecting device characteristic. Our power supplies have the capability to provide stable and reliable power for extended periods of time. The LP539x Series are suitable for high-precision measurement applications such as sensor preamp power supplies and DC bias power supplies used in advanced device research, analysis devices and medical equipment.