參數(shù)資料
型號(hào)： DS18B20-PAR
廠(chǎng)商： DALLAS SEMICONDUCTOR
元件分類(lèi)： Switch/Digital Output Temperature Sensor
英文描述： DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, ROUND, THROUGH HOLE MOUNT
封裝： TO-92, 3 PIN
文件頁(yè)數(shù)： 1/19頁(yè)
文件大?。?/td> 141K
代理商： DS18B20-PAR
1 of 19
043001
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
750 ms (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
PIN ASSIGNMENT
PIN DESCRIPTION
GND - Ground
DQ
- Data In/Out
NC
- No Connect
DESCRIPTION
The DS18B20-PAR 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-PAR does not need an external power supply because it derives power directly from the data
line (“parasite power”).
The DS18B20-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 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.
DS18B20-PAR
1-Wire
Parasite-Power
Digital Thermometer
www.dalsemi.com
TO-92
(DS18B20-PAR)
1
(BOTTOM VIEW)
2
3
DALLAS
18B20P
1
GND
DQ
NC
2 3
相關(guān)PDF資料
PDF描述
DS18B20P DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, SURFACE MOUNT
DS18B20X DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT
DS18B20Z DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, SURFACE MOUNT
DS18B20 DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, THROUGH HOLE MOUNT
DS18B20U+T&R DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, SQUARE, SURFACE MOUNT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS18B20-PAR/T&R 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類(lèi)型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線(xiàn)接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
DS18B20-PAR_07 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:1-Wire Parasite-Power Digital Thermometer
DS18B20-PAR+T&R 制造商:Maxim Integrated Products 功能描述: 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 1-WIRE 3PIN TO-92 - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERM MICROLAN PROG-RES TO-92 制造商:Maxim Integrated Products 功能描述:Board Mount Temperature Sensors Prgmble Resolution 1-Wire Parasite Pwr
DS18B20-PAR+T&R 功能描述:板上安裝溫度傳感器 Prgmble Resolution 1-Wire Parasite Pwr RoHS:否 制造商:Omron Electronics 輸出類(lèi)型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線(xiàn)接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
DS18B20-SL 制造商:DALLAS 制造商全稱(chēng):Dallas Semiconductor 功能描述:Programmable Resolution 1-Wire Digital Thermometer
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