DS18S20-PAR
Parasite-Power Digital Thermometer
- Part Models
- 1
- 1ku List Price
- Starting From $4.17
Part Details
- Unique 1-Wire Interface Requires Only One Port Pin for Communication
- Derives Power from Data Line ("Parasite Power")—Does Not Need a Local Power Supply
- Multi-Drop Capability Simplifies Distributed Temperature Sensing Applications
- Requires no External Components
- ±0.5°C Accuracy from -10°C to +85°C
- Measures Temperatures from -55°C to +100°C (-67°F to +212°F)
- 9-Bit Thermometer Resolution
- Converts Temperature in 750ms (max.)
- User-Definable Non-Volatile Temperature Alarm Settings
- Alarm Search Command Identifies and Addresses Devices Whose Temperature is Outside of Programmed Limits (Temperature Alarm Condition)
- Software compatible with the DS1822-PAR
- Ideal for Use in Remote Sensing Applications (e.g., Temperature Probes) That do not Have a Local Power Source
The DS18S20-PAR digital thermometer provides 9-bit centigrade temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points. The DS18S20-PAR does not need an external power supply because it derives power directly from the data line ("parasite power"). The DS18S20-PAR communicates over a 1-Wire® bus, which 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 +100°C and is accurate to ±0.5°C over a range of -10°C to +85°C.
Each DS18S20-PAR has a unique 64-bit identification code, which allows multiple DS18S20-PARs to function on the same 1-wire bus; thus, it is simple to use one microprocessor to control many DS18S20-PARs 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.
Applications
- Remote Sensing Applications
Documentation
Data Sheet 1
User Guide 1
Application Note 1
Design Note 4
Technical Articles 18
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| DS18S20+PAR | TO92 |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| 1-Wire Temperature Sensors 1 | ||
| DS18S20 | 1-Wire Parasite-Power Digital Thermometer | |
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