Price: Rs 150.00
Price in reward points: 1500
Product Code: DS1820
Reward Points: 15
Availability: In Stock

   High-Precision 1-Wire Digital Thermometer


  • Unique 1-Wire® Interface Requires Only One Port Pin for Communication
  • Each Device has a Unique 64-Bit Serial Code Stored in an On-Board 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)
  • ±0.5°C Accuracy from -10°C to +85°C
  • 9-Bit Thermometer Resolution
  • Converts Temperature in 750ms (max)
  • User-Definable Nonvolatile (NV) Alarm Settings
  • Alarm Search Command Identifies and Addresses Devices Whose Temperature is Outside Programmed Limits (Temperature Alarm Condition)
  • Applications Include Thermostatic Controls, Industrial Systems, Consumer Products,Thermometers, or Any Thermally Sensitive System

   The DS18S20  digital  thermometer  provides  9-bit Celsius  temperature measurements and has an alarm function with nonvolatile user-programmable upper  and  lower  trigger points.  The  DS18S20  communicates   over  a 1-Wire  bus   that  by  definition  requires  only  one data  line (and ground) for communication  with a central microprocessor. It has an operating  temperature  range  of –55°C to +125°C  and is accurate to ±0.5°C over the range of –10°C to +85°C. In addition,  the  DS18S20  can  derive  power  directly  from the data line (“parasite power”), eliminating the need for an external power supply. Each DS18S20 has a unique 64-bit serial code, which allows multiple DS18S20s to function on the same 1-Wire bus. Thus, it  is  simple to use one microprocessor to control many DS18S20s distributed over a large area. Applications that can benefit from this feature include HVAC environmental controls, temperature monitoring systems inside buildings, equipment, or machinery, and process monitoring and control systems.


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