Product Summary

The DS18B20+ Digital Thermometer provides 9 to 12–bit centigrade temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points. The DS18B20+ communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor. In addition, the DS18B20+ can derive power directly from the data line (“parasite power”), eliminating the need for an external power supply.

Parametrics

Absolute maximum ratings: (1)Voltage on Any Pin Relative to Ground: -0.5V to +6.0V; (2)Operating Temperature Range: -55℃ to +125℃; (3)Storage Temperature Range: -55℃ to +125℃; (4)Solder Temperature: See IPC/JEDEC J-STD-020A; (5)Reflow Oven Temperature: +220℃.

Features

Features: (1)Unique 1-Wire interface requires only one port pin for communication; (2)Each device has a unique 64-bit serial code stored in an onboard ROM; (3)Multidrop capability simplifies distributed temperature sensing applications; (4)Requires no external components; (5)Can be powered from data line. Power supply range is 3.0V to 5.5V; (6)Measures temperatures from -55℃ to +125℃ (-67°F to +257°F); (7)±0.5℃ accuracy from -10℃ to +85℃; (8)Thermometer resolution is user-selectable from 9 to 12 bits; (9)Converts temperature to 12-bit digital word in 750ms (max.); (10)User-definable nonvolatile (NV) alarm settings; (11)Alarm search command identifies and addresses devices whose temperature is; (12)outside of programmed limits (temperature alarm condition); (13)Available in 8-pin SO (150mil), 8-pin SOP, and 3-pin TO-92 packages; (14)Software compatible with the DS1822; (15)Applications include thermostatic controls, industrial systems, consumer products, thermometers, or any thermally sensitive system.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
DS18B20+
DS18B20+
Maxim Integrated Products
Board Mount Temperature Sensors Prgmble Resolution 1-Wire Parasite Pwr
Data Sheet
0-1: $3.59
1-25: $2.39
25-50: $1.45
50-100: $1.42
DS18B20+PAR
DS18B20+PAR
Maxim Integrated Products
Board Mount Temperature Sensors Prgmble Resolution 1-Wire Parasite Pwr
Data Sheet
0-1: $3.59
1-25: $2.39
25-50: $1.45
50-100: $1.42
DS18B20+T&R
DS18B20+T&R
Maxim Integrated Products
Board Mount Temperature Sensors Prgmble Resolution 1-Wire Parasite Pwr
Data Sheet
0-1: $2.74
1-25: $2.06
25-50: $2.00
50-100: $1.81