DS18B20T-XBLW-TO-92 Temperature Sensors IC
The DS18B20 digital thermometer provides temperature measurement with a resolution of 9 to 12 bits, and can achieve lower and upper temperature limit alarms through programmable non-volatile storage units.
DS18B20 uses a single bus protocol to communicate with the upper computer, requiring only one signal line and one ground line. Its temperature measurement range is −55
∘
C∼+125
∘
C. The testing accuracy within the range of −10
∘
C∼+70
∘
C can reach ±0.4
∘
C. In addition, it can also operate in parasitic mode, directly supplying power to the chip through signal lines without the need for additional power supply.
Each DS18B20 has a globally unique 64 bit serial number, which allows multiple 18B20s to be connected in series on the same single bus for networking. With just one processor, multiple DS18B20s distributed over a large area can be controlled.
This networking method is particularly suitable for HVAC environmental control, building, equipment, grain temperature measurement, industrial temperature measurement, and process monitoring and control applications.
