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參數(shù)資料
| 型號(hào)： | DS1775R/TR4 |
| 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), 2Cel, RECTANGULAR, SURFACE MOUNT |
| 封裝： | SOT-23, 5 PIN |
| 文件頁(yè)數(shù)： | 7/13頁(yè) |
| 文件大?。?/td> | 201K |
| 代理商： | DS1775R/TR4 |
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DS1775
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Digital data is written to/read from the DS1775 via a 2–wire interface, and all communication is MSb first.
DS1775 FUNCTIONAL BLOCK DIAGRAM Figure 1
OPERATION–MEASURING TEMPERATURE
The core of DS1775 functionality is it’s direct–to–digital temperature sensor. The DS1775 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 DS1775 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 DS1775 power–up default has the sensor automatically performing 9–bit
conversions continuously. Details on how to change the settings after power–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 DS1775 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 beused.
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PDF描述 |
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| DS1775R/TRL | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT |
| DS1775R/TR6 | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT |
| DS1775R/TR1 | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT |
| DS1775R/TR7 | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT |
| DS1775R/TR1 | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1775R-U | 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 |
| DS1776 | 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:PI-Bus Transceiver |
| DS1776E/883 | 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:PI-Bus Transceiver |
| DS1776J/883 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| DS1776W/883 | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:Single 8-bit Bus Transceiver |
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