[time-nuts] Question for my new GPSDO

[Jim Harman]

Another sensor you might consider for measuring ambient temperature is the
LM34 or LM35. These have an analog output calibrated in degrees F for the
LM34 or C for the 35.

They are less expensive than the DS1620 and you can feed the output into a
spare A/D channel. I prefer the LM34 because Farenheit calibration makes it
more sensitive. Be sure to include the RC network described in the
datasheet to minimize output noise.

Also looking at your schematic you should probably use higher value
resistors than 1K in series with the op amp outputs to reduce the current
drain. OCXOs generally have a high input resistance so 10K would probably
be better.

-- 

--Jim Harman