He states the resolution as 0.1C, not the accuracy, which is 0.5C
metal stated that
It has 0.1C resolution, very accurate indeed.
and when metal said "very accurate indeed" I figured metal emphasized that the 0.1C resolution was very accurate. What else could metal be emphasizing?
why are you criticising metal ?
I'm sorry you thought it was criticism, but it wasn't. I simply looked at what metal said, then thought thats a nice temperature sensor and looked it up. I then asked because I didn't understand/I was confused about what metal meant.
over the range from -10°C to +85°C, reading error can be +/-0.5C, which is the accuracy over the whole range.
Technically, the +/-0.5C is in the -10C to +85C which is not the whole operating range. I also note that the datasheet
has a figure(17) called "Typical Performance Curve" which displays temperature error over a temperature range of -20 to +70 as far I can see. Why they don't show "performance" over the whole operating range I can only speculate on, never mind the meaning of the "mean" error" curve and its purpose.
resolution is actually 0.0625°C, so 0.0625°C is the steps at which temperature is converted (incremented/decremented), hence resolution, and when the decimal part is calculated, it is divided by 1000 to display only xx.x, instead of xx.xxxx... so accuracy and resolution are not the same.. Bobbla, read the datasheets again. In p.8 in the datasheet, you can configure the sensor's resolution, as shown in the attached figure. then you have to manipulate the reading you obtained from the sensor depending on the resolution you selected..
I now understand that the temperature sensors datasheet says, 0.0625C resolution and that you want to only display 3 numbers.
I'm still a little confused, how is the 0.0625C derived? I would think that they would take the operating range divided by 12 bit resolution. I mean, 12 bit resolution = 4095 steps, but 4095 steps of 0.0625C increments gives about 255C which is not equal to the 180C temperature range.
Also, as I understand it the ADC can supposedly deliver 0.0625C accurate temperature measurements. But whatever it is measuring from seems to only deliver 0.5C precision. Is this a good assumption?
edit: also, the accuracy and resolution are not exactly the same. BUT a higher resolution gives the opportunity for greater accuracy. The resolution comes from ADC, which measures voltage. The accuracy in degrees Celsius is a result voltage change over "something", so the accuracy is a result of both the ADC resolution and the accuracy of "something" to generate a specific voltage as a result of temperature. DERP!