Dan - Almost all the 3-terminal 7805-style regulators are going to have tempcos near -100 or -120PPM/DegC.
Bare 5.6V zener has a tempco closer to 40PPM/DEGC. I don't know anything that combines the reference with the pass device in the same package and gets to a few PPM/degC. Obviously few-PPM references are readily available. Tim N3QE On Mon, Dec 8, 2014 at 1:18 PM, Dan Kemppainen <d...@irtelemetrics.com> wrote: > Hi, > > In playing with some oscillators and a GPSDO here, I think I'm seeing a > voltage sensitivity issue. > > So, I started looking at the output voltage of various regulators vs. > temp. Using standard LM/UA type linear regulators and some LDO's, they all > appear to be pretty sensitive to temperature. (millivolt / few degrees > Fahrenheit sort of sensitivity). Most of the datasheets seem to ignore temp > sensitivity. Almost like they are so bad they don't want to publish it... > > Does anyone have hints on TO-220 or D-Pak type regulators that have really > good temp coefficients and good line regulation? A few PPM/Deg C might be > nice, if possible. Or am I into a 'roll you own' type design... > > Dan > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.