in an article appearing in the late 1990's a fellow ham radio op used multilple Thaler voltage references (don't worry, you won't be able to find them) to reduce the noise, tempco effects and improve acuracy. The result was a DIY voltage measurement unit which was approaching the acuracy of high end HP, Keithley and Fluke equipment.
how would this affect the "noise" of the Super-Reg if one were to combine multiple references, RC filtering with an ultra-low noise error amp (like the AD797)?
how would this affect the "noise" of the Super-Reg if one were to combine multiple references, RC filtering with an ultra-low noise error amp (like the AD797)?
Just wondering but how much noise did this super reference produce really? A LM329/LM199 and LTZ1077(?) are all pretty good and a plain LM431 with the normal heavy LP-filter will also be rather low noise-ish.
ADR420 is pretty good also from Analog Devices.
http://www.diyaudio.com/forums/showthread.php?postid=639863#post639863
ADR420 is pretty good also from Analog Devices.
http://www.diyaudio.com/forums/showthread.php?postid=639863#post639863
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.