The main features of DS18B20 temperature probe

The adaptable voltage range is wider, the voltage range:3.0~5.5V in the parasitic power supply mode, it can be powered by the data line.

1. The adaptable voltage range is wider, the voltage range:3.0~5.5V in the parasitic power supply mode, it can be powered by the data line.

2. Unique single-line interface method, DS18B20 only needs one port line to realize two-way communication between the microprocessor and DS18B20 when connecting with the microprocessor.

3. DS18B20 supports multi-point networking function, multiple DS18B20 can be connected in parallel on a single three-wire to realize multi-point temperature measurement in networking.

4. DS18B20 does not require any peripheral components in use, all sensing components and conversion circuits are integrated in an integrated circuit shaped like a triode.

5. Temperature range-55℃~+125℃, the accuracy is±0.5℃ at- 10~+85℃.

6. The programmable resolution is 9 to 12 bits , and the corresponding distinguishable temperatures are 0.5°C 0.25°C，0.125C and 0.0625C, which can achieve high-precision temperature measurement.

7. The temperature can be converted to a number within 93.75ms at 9-bit resolution, and the temperature value can be converted to a number within 750ms at 12-bit resolution , which is faster .

8. The measurement result directly outputs the digital temperature signal which is serially transmitted to the CPU by"1-wire bus", and can transmit the CRC check code at the same time, which has strong anti-interference and error correction ability.

9. Negative pressure characteristics: When the polarity of the power supply is reversed, the chip will not be burnt due to heat, but it will not work normally.