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參數(shù)資料
| 型號(hào)： | LM74A |
| 廠(chǎng)商： | National Semiconductor Corporation |
| 元件分類(lèi)： | 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(hào)溫度傳感器（LM74在模具中） |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大?。?/td> | 605K |
| 代理商： | LM74A |
LM74A
SPI/MICROWIRE
12-Bit Plus Sign Temperature Sensor
(LM74 in Die Form)
General Description
The LM74A is a temperature sensor, Delta-Sigma analog-to-
digital converter with an SPI and MICROWIRE compatible
interface in die form. The host can query the LM74A at any
time to read temperature. A shutdown mode decreases
power consumption to less than 10 μA. This mode is useful
in systems where low average power consumption is critical.
This particular data sheet applies to the LM74 in die form.
The LM74 is available in the SO-8 package as well as an
5-Bump micro SMD package please refer to LM74 data
sheet for detailed specifictions pertaining to the packaged
parts.
The LM74A has 12-bit plus sign temperature resolution
(0.0625C per LSB) while operating over a temperature
range of 40C to +150C. The LM74A-5 MDA accuracy of
±
3.5C is specified over a temperature range of 0C to
+150C.
The LM74A’s 4.5V to 5.5V or 3.0V to 3.6V supply voltage
range, low supply current and simple SPI interface make it
ideal for a wide range of applications. These include thermal
management and protection applications in hard disk drives,
printers, electronic test equipment, and office electronics.
Applications
n
System Thermal Management
n
Personal Computers
n
Disk Drives
n
Office Electronics
n
Electronic Test Equipment
Features
n
0.0625C temperature resolution.
n
Shutdown mode conserves power between temperature
reading
n
SPI and MICROWIRE Bus interface
n
LM74 is also available in a 5-Bump micro SMD and
8-pin MSOP
Key Specifications
j
Supply Voltage
LM74A-5
LM74A-3
4.5V to 5.5V
3.0V to 3.6V
310μA (typ)
520μA (max)
8μA (typ)
±
3.0C(max)
j
Supply Current
operating
shutdown
0C to 140C
j
LM74A-5 MDA
Temperature
Accuracy
140C to 150C
±
3.5C(max)
Simplified Block Diagram
20017701
MICROWIRE
is a trademark of National Semiconductor Corporation.
TRI-STATE
is a registered trademark of National Semiconductor Corporation.
November 2004
L
2004 National Semiconductor Corporation
DS200177
www.national.com
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(chēng):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(chēng):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(lèi)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(lèi)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(kù) 輸出類(lèi)型:2 線(xiàn) SMBus? 輸出警報(bào):無(wú) 輸出風(fēng)扇:無(wú) 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類(lèi)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(chēng):296-22675-6 |
| LM74CIBP-5 | 功能描述:IC TEMP SENSOR DGTL 5-MICROSMD RoHS:否 類(lèi)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(lèi)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(kù) 輸出類(lèi)型:2 線(xiàn) SMBus? 輸出警報(bào):無(wú) 輸出風(fēng)扇:無(wú) 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類(lèi)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(chēng):296-22675-6 |
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