High Performance 1 Wire Digital ThermometerDS18B20 Digital Temperature Sensor One Wire Digital Temperature Sensor - DS18B20
This is the latest DS18B20 1-Wire digital temperature sensor from Maxim IC. Reports degrees C with 9 to 12-bit precision, -55C to 125C (+/-0.5C). Each sensor has a unique 64-Bit Serial number etched into it - allows for a huge number of sensors to be used on one data bus. This is a wonderful part that is the corner stone of many data-logging and temperature control projects.
Features:
1) Unique 1-Wire® interface requires only one port pin for communication;
2) Each device has a unique 64-bit serial code stored in an onboard ROM;
3) Multidrop capability simplifies distributed temperature sensing applications;
4) Requires no external components;
5) Can be powered from data line. Power supply range is 3.0V to 5.5V;
6) Measures temperatures from –55°C to +125°C (–67°F to +257°F);
7) ±0.5°C accuracy from –10°C to +85°C;
8) Thermometer resolution is user-selectable from 9 to 12 bits;
9) Converts temperature to 12-bit digital word in 750ms (max.);
10) User-definable nonvolatile (NV) alarm settings;
11) Alarm search command identifies and addresses devices whose temperature is outside of programmed limits (temperature alarm condition);
12) Applications include thermostatic controls, industrial systems, consumer products, thermometers, or any thermally sensitive system;
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