參數(shù)資料
型號: LM74A
廠商: National Semiconductor Corporation
元件分類: 溫度/濕度傳感器
英文描述: SPI/MICROWIRE 12-Bit Plus Sign Temperature Sensor (LM74 in Die Form)
中文描述: 的SPI / MICROWIRE的12位帶符號溫度傳感器(LM74在模具中)
文件頁數(shù): 11/12頁
文件大小: 605K
代理商: LM74A
3.0 Application Hints
3.1 LIGHT SENSITIVITY
The LM74A in die form should not be exposed to ultraviolet
light. Exposing the LM74A to bright sunlight will not immedi-
atly cause a change in the output reading. Our experiments
show that directly exposing the circuit side (pad side) of the
die to high intensity (
1mW/cm
2
) ultraviolet light, centered at
4.0 Typical Applications
a wavelength of 254nm, for greater than 20 minutes will
deprogram the EEPROM cells in the LM74A. Since the
EEPROM is used for storing calibration coefficients, the
LM74A will function but the temperature accuracy will no
longer be as specified. Light can penetrate through the side
of the die as well.
20017720
FIGURE 8. Temperature monitor using Intel 196 processor
20017719
FIGURE 9. LM74A digital input control using micro-controller’s general purpose I/O.
L
www.national.com
11
相關(guān)PDF資料
PDF描述
LM74A-3MDA SPI/MICROWIRE 12-Bit Plus Sign Temperature Sensor (LM74 in Die Form)
LM74A-5MDA SPI/MICROWIRE 12-Bit Plus Sign Temperature Sensor (LM74 in Die Form)
LM760 High Speed Differential Comparator
LM760CH High Speed Differential Comparator
LM760CJ High Speed Differential Comparator
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM74A-3MDA 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SPI/MICROWIRE 12-Bit Plus Sign Temperature Sensor (LM74 in Die Form)
LM74A-5MDA 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SPI/MICROWIRE 12-Bit Plus Sign Temperature Sensor (LM74 in Die Form)
LM74BX-0500 WAF 制造商:Texas Instruments 功能描述:
LM74CIBP-3 功能描述:IC TEMP SENSOR DGTL 5-MICROSMD RoHS:否 類別:集成電路 (IC) >> PMIC - 熱管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:溫度監(jiān)控系統(tǒng)(傳感器) 傳感器類型:內(nèi)部和外部 感應(yīng)溫度:-40°C ~ 125°C,外部傳感器 精確度:±2.5°C 本地(最大值),±5°C 遠(yuǎn)程(最大值) 拓?fù)?ADC,比較器,寄存器庫 輸出類型:2 線 SMBus? 輸出警報(bào):無 輸出風(fēng)扇:無 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-8 供應(yīng)商設(shè)備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱:296-22675-6
LM74CIBP-5 功能描述:IC TEMP SENSOR DGTL 5-MICROSMD RoHS:否 類別:集成電路 (IC) >> PMIC - 熱管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:溫度監(jiān)控系統(tǒng)(傳感器) 傳感器類型:內(nèi)部和外部 感應(yīng)溫度:-40°C ~ 125°C,外部傳感器 精確度:±2.5°C 本地(最大值),±5°C 遠(yuǎn)程(最大值) 拓?fù)?ADC,比較器,寄存器庫 輸出類型:2 線 SMBus? 輸出警報(bào):無 輸出風(fēng)扇:無 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-8 供應(yīng)商設(shè)備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱:296-22675-6