Hello Dan,
If you look for sub-ppm then also noise or hysteresis might be a issue.
Nearly all good references have around 0.6ppm low frequency noise with
respect to output voltage.
(giving 3uVpp for 5V).
I have tested 2 VRE3050A for noise and one for TC.
In the range of 16-40 deg C average
In message 54549b2c.9070...@t-online.de, Andreas Jahn writes:
Ok perhaps you have to select them for tempco. In my case tempco is
compensated by a microcontroller with a (NTC) temperature sensor.
Don't underestimate how easy it is to make a oven with a peltier.
If you just want to
Hello Poul,
You are right:
Since I use usually battery supply I do not want any heating/cooling.
And since the references that I use are only for measuring voltages in a
kind of voltmeter
I can easily compensate the effect of temperature by calculation.
On the other side also a reference can
Hi All,
I'm working on something that requires a stable voltage reference.
Long term stability isn't needed, but good thermal stability is. In
other words it would be nice to have sub ppm/C temperature, but a few
ppm/month or even per day isn't an issue.
Anyway, it got me thinking about building
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