9~12 adjustable resolution
Power supply range: 3.0V-5.5V
Operating temperature range:-55°C - +125°C (-67°F - +257°F)
Storage temperature range: -55°C to - 125°C (-67°F - +257°F)
Accuracy over the range of -10°C to +85°C: 0.5°C.
No other components, unique single bus interface
Output lead:red (VCC), yellow(DATA) , black(GND)
Cable length:Approx.100 cm
Order information
| Ordering number |
Packing marking |
Description |
| DS18B20 |
18B20 |
DS18B20 in 3-pin TO92 |
| DS18B20/T&R |
18B20 |
DS18B20 in 3-pin TO92, 2000 Piece Tape-and-Reel |
| DS18B20+ |
18B29 (See Note) |
DS18B20 in Lead-Free 3-pin TO92 |
| DS18B20+T&R |
18B20 (See Note) |
DS18B20 in Lead-Free 3-pin TO92, 2000 Piece Tape-and -Reel |
| DS18B20U |
18B20 |
DS18B20 in 8-pin uSOP |
| DS18B20U/T&R |
18B20 |
DS18B20 in 8-pin uSOP, 3000 Piece Tape-and-Reel |
| DS18B20U+ |
18B20 (See Note) |
DS18B20 in Lead-Free 8-pin uSOP |
| DS18B20U+T&R |
18B20 (See Note) |
DS18B20 in Lead-Free 8-pin uSOP, 3000 Piece Tape-and-Reel |
| DS18B20Z |
DS18B20 |
DS18B20 in 150 mil 8-pin SO |
| DS18B20Z/T&R |
DS18B20 |
DS18B20 in 150 mil 8-pin SO, 2500 Piece Tape-and-Reel |
| DS18B20Z+ |
DS18B20 |
DS18B20 in Lead-Free 150 mil 8-pin SO |
| DS18B20Z+T&R |
DS18B20 |
DS18B20 in Lead-Free 150 mil 8-pin SO, 2500 Piece Tape-and-Reel |
Note: A "+'' symbol will also be marked on the package.
Detailed pin descriptions Table 1
| SO* |
μSOP* |
TO-92 |
Symbol |
Description |
| 5 |
4 |
1 |
GND |
Ground. |
| 4 |
1 |
2 |
DQ |
Data Input/Output pin. Open-drain 1-Wire interface pin. Also provides power to the device when used in parasite power mode (see ''Parasite Power'' section.) |
| 3 |
8 |
3 |
Vdd |
Optional Vdd pin. Vdd must be grounded for operation in parasite power mode. |
*All pins not specified in this table are ''No Connect'' pins.
Specification:
1. Temperature range of -55 ºC ~ +125 ºC, the measurement resolution of 0.0625 ºC; -10 ~ +85 ºC when the accuracy of ± 0.5 ºC.
2. Available data lines, voltage range: 3.0 ~ 5.5V
3. Negative pressure characteristics: power polarity reverse, the thermometer is not good because of fever and burned, but can not work properly.
4. Programmable resolution of 9 to 12, the corresponding resolution of the temperature were 0.5 ºC, 0.25 ºC, 0.125 ºC and 0.0625 ºC, to achieve high-precision temperature measurement.
5. Contains 64-bit laser-corrected read-only memory.
6. Adapt to a variety of single-chip or system machine
7. Users can distinguish between the upper and lower limits of the temperature
8. Contains parasitic power supply
Product features:
DS18B20 sensor is digital temperature sensor. It is a usual temperature sensor with advantage of small body, accuracy measuring and strong noise screening sensor. It has good stability and can be macthed with other products.
DS18B20 pin definition:
DQ is the input/output of digital signal
GND is the power field
VDD is the input terminal of external power supply power supply (grounding when the parasitic power connection mode is connected)
Parameters:
| Product name |
Digital temperature sensor |
| Electronic pressure range |
3.0~5.5v |
| Characteristics |
High accuracy of temperature measuring |
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