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參數(shù)資料
| 型號： | DS1821 |
| 廠商： | Maxim Integrated |
| 文件頁數(shù)： | 1/19頁 |
| 文件大?。?/td> | 793K |
| 描述： | IC THERMOMETER/STAT PROG 3-PR35 |
| 產(chǎn)品培訓(xùn)模塊： | 1-Wire Communications Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 產(chǎn)品變化通告： | DS1821 Discontinuation 01/May/2012 |
| 標準包裝： | 500 |
| 系列： | 1-Wire® |
| 功能： | 溫度計，恒溫計 |
| 傳感器類型： | 內(nèi)部 |
| 感應(yīng)溫度： | -55°C ~ 125°C |
| 精確度： | ±1°C（最小值） |
| 拓撲： | 比較器，寄存器庫 |
| 輸出類型： | 數(shù)字 |
| 輸出警報： | 無 |
| 輸出風(fēng)扇： | 無 |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -55°C ~ 125°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | TO-226-3、TO-92-3 長體 |
| 供應(yīng)商設(shè)備封裝： | TO-92-3 |
| 包裝： | 托盤 |
1 of 19
FEATURES
? Requires no external components
? Unique 1-Wire
?/DIV>
interface requires only one
port pin for communication
? Operates over a -55癈 to +125癈 (-67癋 to
+257癋) temperature range
? Functions as a standalone thermostat with
user-definable trip-points
? Provides 8-bit (1癈 resolution) centigrade
temperature measurements
? Accuracy is ?癈 over 0癈 to +85癈 range
? Converts temperature to a digital word in
1 second (max)
? Available in 3-pin TO92 and 8-pin SO
packages
? Applications include thermostatic controls,
industrial systems, consumer products,
thermometers, or any thermally sensitive
system
PIN ASSIGNMENT
PIN DESCRIPTION
GND - Ground
DQ
- Data In/Out and Thermostat Output
V
DD
- Power Supply Voltage
NC
- No Connect
DESCRIPTION
The DS1821 can function as a standalone thermostat with user-programmable trip-points or as 8-bit
temperature sensor with a 1-Wire digital interface. The thermostat trip-points are stored in nonvolatile
memory, so DS1821 units can be programmed prior to system insertion for true standalone operation.
The DS1821 has an operating temperature range of 55癈 to +125癈 and is accurate to ?癈 over a range
of 0癈 to +85癈. Communication with the DS1821 is accomplished through the open-drain DQ pin; this
pin also serves as the thermostat output.
DS1821
Programmable Digital Thermostat and Thermometer
8-pin 208-mil SO
D 1 21
1
B TT M IE
2 3
DS1821
1
2 3
TO92
(DS1821C)
6
3
1
2
4
7
5
D
NC
V
N
NC
1-Wire is a registered trademark of Maxim Integrated
Products, Inc.
1 - 22 R v 12
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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: |
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