Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
How are you planning calibrating it to 0.2 degrees?, you will also have to calibrate it across the entire range as it's not linear, and use a lookup table to convert the readings. Repeatability is much more likely than accuracy.
I'm somewhat dubious about getting 0.2 degrees accuracy?, would 0.5 degrees not do? - if so you could use the DS18B20 which requires no calibration.
Then do it, accuracy is down to how well you build it, and even more so to how well you calibrate it - at least you have a nice low range you need to cover, so the calibration lookup table won't be too big.