Just practical question.. How would one measure noise at this level? If I were evaluate this what would I need? My scope lacks a nV/dev setting so is there some way to tell the difference between this and an LM317? Seriously, what kind of instrumentation would I need before I could measure an improvement over my "standard" LM317
On Wed, Aug 6, 2014 at 11:38 PM, Ole Petter Ronningen <[email protected]> wrote: > Hello, all > > I thought it may be of interest to some of the members of this list that TI > is selling evaluation modules for some ultra low noise regulators for $20 > in their estore, shipping world wide included. The specs looks pretty > decent to me, and I've ordered up a couple of boards to use as "clean up > boxes" for my bench-supplies, to use on noise-sensitive projects. > > 1.4-30v output TPS7A4701EVM-094 > 3.5µVRMS (10Hz, 100KHz) > <25 nV/√Hz (10Hz, 1MHz) > Maximum Output Current of 1A > > +-15v version TPS7A30-49EVM-567: > 15v rail: > Noise: > 12.7µVRMS (20Hz to 20kHz) > 15.4µVRMS (10Hz to 100kHz) > Power-Supply Ripple Rejection: > 72dB (120Hz) > ≥ 52dB (10Hz to 400kHz) > Maximum Output Current: 150mA > > > -15v rail: > Noise: > 14µVRMS (20Hz to 20kHz) > 15.1µVRMS (10Hz to 100kHz) > Power-Supply Ripple Rejection: > 72dB (120Hz) > ≥ 55dB (10Hz to 700kHz) > Maximum Output Current: 200mA > > Ole > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. -- Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
