[time-nuts] Temperature sensors and bridge amps

[Bill Hawkins]

Ah, yes, the AD590. Among the specifications, we find:

  Long-Term Drift: ±0.1°C/month max 

That's roughly 3 millidegrees per day.

And it's one microamp per degree K, about 300 microamps at
room temperature.

Bill Hawkins


-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of J. Forster
Sent: Friday, November 12, 2010 11:30 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Temperature sensors and bridge amps

Why mess with bridges, etc? Analog Devices, among others, make solid state
temperature sensors that are very good and put out linearized currents,
something like 1 mV / Degree K.

-John