Product Details
Key Features
Applications/Uses
Sensor Type | Local |
# Channels | One |
Interface | 1-Wire |
Accuracy (±°C) | 0.5 |
Parasite Pwr. | Yes |
Temp. Thresh. | Programmable (NV) |
Temp. Resolution (bits) | 9 10 11 12 |
Oper. Temp. (°C) | -55 to +100 |
Package/Pins | TO92/3 |
Budgetary Price (See Notes) | 2.52 |
Simplified Block Diagram
Technical Docs
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Parameters
Sensor Type | Local |
# Channels | One |
Interface | 1-Wire |
Accuracy (±°C) | 0.5 |
Parasite Pwr. | Yes |
Temp. Thresh. | Programmable (NV) |
Temp. Resolution (bits) | 9 10 11 12 |
Oper. Temp. (°C) | -55 to +100 |
Package/Pins | TO92/3 |
Budgetary Price (See Notes) | 2.52 |
Key Features
- 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)
- Thermometer Resolution is User-Selectable from 9 to 12 Bits
- Converts Temperature to 12-Bit Digital Word 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
Applications/Uses
- Remote Sensing Applications
Description
Each DS18B20-PAR has a unique 64-bit identification code, which allows multiple DS18B20-PARs to function on the same 1-wire bus; thus, it is simple to use one microprocessor to control many DS18B20-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.
Technical Docs
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .