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This sealed digital temperature probe lets you precisely measure temperatures in wet environments with a simple 1-Wire interface. The DS18B20 provides 9 to 12-bit (configurable) temperature readings over a 1-Wire interface, so that only one wire (and ground) needs to be connected from a central microprocessor.
NOTES
- Usually a 4.7Kohm resistor is required to connect to a microcontroller.
- Exactly the same sensor in technical characteristics as the DS18B20 housed in a metal housing.
- Temperature measuring range -55...125°C (–67°F to +257°F)
- Temperature measurement accuracy: ±0.5°C (–10°C to +85°C)
- Working Voltage: 3.0V - 5.5V
- Case TO92
- Mounting THT
- Probe is 7mm in diameter and roughly 26mm long.
- Overall length (including wire) is 200cm.
- 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
- Thermometer resolution is user-selectable from 9 to 12 bits
- Converts temperature to 12-bit digital word in 750ms (max.)
- User-definable nonvolatile (NV) alarm settings
- Alarm search command identifies and addresses devices whose temperature is outside of programmed limits (temperature alarm condition)
- Applications include thermostatic controls, industrial systems, consumer products, thermometers, or any thermally sensitive system
