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參數(shù)資料
| 型號： | DS75 |
| 英文描述： | 2.Wire Thermal Watchdog |
| 中文描述： | 數(shù)字溫度計和溫度監(jiān)控器 |
| 文件頁數(shù)： | 3/13頁 |
| 文件大?。?/td> | 240K |
| 代理商： | DS75 |
DS75
3 of 13
DS75 FUNCTIONAL BLOCK DIAGRAM
Figure 1
OPERATION–Measuring Temperature
The core of DS75 functionality is its direct–to–digital temperature sensor. The DS75 measures
temperature through the use of an on–chip temperature measurement technique with an operating range
from –55
°
C to +125
°
C. Temperature conversions are initiated upon power–up, and the most recent result
is stored in the thermometer register. Conversions are performed continuously unless the user intervenes
by altering the configuration register to put the DS75 into a shutdown mode. Regardless of the mode
used, the digital temperature can be retrieved from the temperature register by setting the pointer to that
location (00h, power–up default). The DS75 power–up default has the sensor automatically performing
9–bit conversions continuously. Details on how to change the settings after pow-er up are contained in the
“OPERATION– Programming” section.
The resolution of the temperature conversion is configurable (9, 10, 11, or 12 bits), with 9–bit readings
the default state. This equates to a temperature resolution of 0.5
°
C, 0.25
°
C, 0.125
°
C, or 0.0625
°
C.
Following each conversion, thermal data is stored in the thermometer register in two’s complement
format; the information can be retrieved over the 2–wire interface with the device pointer set to the
temperature register. Table 2 describes the exact relationship of output data to measured temperature. The
table assumes the DS75 is configured for 12–bit resolution; if the device is configured in a lower
resolution mode, those bits will contain zeros. The data is transmitted serially over the 2–wire serial
interface, MSb first. The MSb of the temperature register contains the “sign” (S) bit, denoting whether the
temperature is positive or negative. For Fahrenheit usage, a lookup table or conversion routine must be
used.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS7505 | 制造商:Maxim Integrated Products 功能描述:LOW-VOLTAGE (1.7V TO 3.7V)DIGITAL THERMOMETER & THERMOSTAT - Rail/Tube |
| DS7505S | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Digital Thermometer and Thermostat |
| DS7505S+ | 功能描述:板上安裝溫度傳感器 Thermometer & Thermostat 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| DS7505S+T&R | 制造商:Maxim Integrated Products 功能描述:DGTL THERMOMETER AND THERMOSTAT 8SOIC N - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC DGTL THERMOMETER 2WIRE 8-SOIC |
| DS7505S+T&R | 功能描述:板上安裝溫度傳感器 Thermometer & Thermostat 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
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