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 _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
