----- Original Message ----- From: "PicDude" > On Monday 21 March 2005 07:56 am, michael brown scribbled: > > From: "John Pearson" > > ... > > LM34 or LM35 offer analog outputs of 10mV/degree (C or F depending upon > > sensor model) Dallas DS1621 or DS1721 have I2C (2-wire or SMBUS) > > outputs giving a reading directly in degrees C. DS1821 is a 1-wire > > version of the same. LM75(also LM76 and LM77) are I2C. LM74 is SPI. > > > > > Resolution of 1 degree F would be fine. > > > > All of the above are higher resolution than that. Most are least .5C > > resolution, some are .0625C resolution. Accuracy is usually around 1C. > > > How do you define resolution for analog-output sensors such as the LM34, LM35? Just like the datasheet does: 10mV/degree -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist