I was looking for a fairly steady input to my VCO, to check frequency stability, and remembered my old 10 volt REF-01 box. It's powered by a
14 volt wall-wart. I built and tweaked it about 10 years ago.-- John Larkin Highland Technology, Inc picosecond timing precision measurement
Nice. I used a 10V Ref01 with 0.1% R's as a current source (compliance voltage sucked.. ~6V.)
George H.
Presumably it has high input resistance so you can RC filter the heck out of it
Is that to me or JL? The current source has a fet-opamp follower in the loop. Feeding the common of the REF01. (From AoE2 end of the chapter circuit ideas.)
GH
The VCO? No, it will be inside a fast PLL.
-- John Larkin Highland Technology, Inc picosecond timing precision measurement
I used to use a fair number of those in one-offs. The temperature output was useful too.
Cheers
Phil Hobbs
-- Dr Philip C D Hobbs Principal Consultant
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** I've been using a Nat Semi LH0070-1H for about 30 years to check and calibrate my various DMMs.The 10V reference is fed from a 15V regualtor - both in TO5 pak.
The ten volt output is divided down by a string of 0.1% precision resistors to get accurate 1V and 100mV references.
.... Phil
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