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TO-92 Digital Temperature Sensor -50 to +125C DS18S20+

£3.66
(£4.39 incl VAT)
Price in points: 732 points
3801-194
In stock
+
Our quantity discounts:
Quantity 10+ 25+
Price £3.11 £2.75

The sensor allows direct digital output of the measured temperature without the need for an A/D transformer, and is already calibrated by the manufacturer. The sensor includes a digital thermometer and also offers functions such as thermostat, programmable digital thermostat or memory.

Housing type TO-92
Measurement range(s) -50 - +125 ºC in 0.5 ºC increments
Scan rate 1 s
Data output 9 bit
Type DS18S20

Features
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


Detailed Description
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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