On 12/7/16 3:32 PM, Richard (Rick) Karlquist wrote:
On 12/7/2016 12:16 PM, Clint Jay wrote:
I was looking for a low noise regulator to power a log amp/detector
earlier
this year and was rather surprised to find the 78xx regulators were
considerably better than many of the "low noise" devices.
Are you kidding me? Check out the Linear Technology LT3042 and
LT3045 with 2 (yes, TWO) NANOVOLTS/root-Hz spot noise. Orders of
magnitude better than the 78XX introduced 45 years ago.
I'd second the recommendation for the LT3042 - I'm using them in a
science instrument which is very noise sensitive.
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