Shenzhen TOPOS sensor technology co,. LTD
Shenzhen TOPOS sensor technology co,. LTD
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  • DS18B20
  • DS18B20


Specification: DS18B20


Material: Semiconductor ceramics/epoxy/Enameled wire

Applicable temperature range:-55~125℃

Output signal: Digital signal output


Unique 1-Wire® interface requires only one port pin for communication

Each device has a unique 64-bit serial code stored in an onboard ROM

Multidrop capability simplifies distributed temperature sensing applications

Requires no external components

Can be powered from data line. Power supply range is 3.0V to 5.5V

Measures temperatures from –55°C to

+125°C (–67°F to +257°F) 0.5C accuracy from –10°C to +85°C

Thermometer resolution is user-selectable from 9 to 12 bits

Converts temperature to 12-bit digital word in 750ms (max.)


1. Temperature control and temperature detection of household appliances such as induction cooker sensor diode, electric pressure cooker, rice cooker, electric oven, disinfection cabinet, water dispenser, microwave oven, electric heater, etc.

2. Temperature detection and temperature compensation of medical equipment (such as copiers, printers, etc.)

3. Temperature sensors for industrial applications, medical, environmental protection, meteorological, and food processing equipment

4. Temperature protection of rechargeable battery pack and charger

5. Practical application of thermistor: instrument coils, integrated circuits, quartz crystal oscillators and thermocouples

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