參數(shù)資料
型號: DS1821
元件分類: 溫度傳感器
英文描述: Programmable Digital Thermostat
文件頁數(shù): 3/16頁
文件大小: 570K
代理商: DS1821
DS1821
3 of 16
DS1821 BLOCK DIAGRAM
Figure 1
OPERATION
Temperature Measurement
The DS1821 measures temperatures through the use of an onboard proprietary temperature measurement
technique. The temperature reading is provided in an 8-bit, two’s complement reading. Table 1 describes
the exact relationship of output data to measured temperature. The data is transmitted serially over the 1-
Wire interface. The DS1821 can measure temperature over the range of -55
°
C to +125
°
C in 1
°
C
increments. For Fahrenheit usage, a lookup table or conversion factor must be used. Please refer to
Application Note 105 for the method to increase the resolution of the DS1821.
TEMPERATURE/DATA RELATIONSHIPS
Table 1
TEMPERATURE
+125°C
+25°C
0°C
-1°C
-25°C
-55°C
DIGITAL
OUTPUT
(Binary)
01111101
00011001
00000000
11111111
11100111
11001001
DIGITAL
OUTPUT
(Hex)
7Dh
19h
00h
FFh
E7h
C9h
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1821_07 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Programmable Digital Thermostat and Thermometer
DS1821+ 功能描述:板上安裝溫度傳感器 Programmable Digital Thermostat/Thrmmtr RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口: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
DS1821C+ 功能描述:恒溫器 Programmable Digital Thermo-stat/monitor RoHS:否 制造商:Maxim Integrated 功能: 開路溫度: 閉合溫度: 準(zhǔn)確性:+/- 1 C 溫度范圍:- 55 C to + 125 C 電流額定值:500 uA 電壓額定值:2.7 V to 5.5 V 產(chǎn)品:Thermostats
DS1821-C02 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口: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
DS1821-C04 制造商:DSC 功能描述: