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參數資料
| 型號： | LM19CIZ |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | 2.4V, 10uA, TO-92 Temperature Sensor |
| 中文描述： | 2.4V的，為10uA，至92溫度傳感器 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 173K |
| 代理商： | LM19CIZ |
LM19
2.4V, 10μA, TO-92 Temperature Sensor
General Description
The LM19 is a precision analog output CMOS integrated-
circuit temperature sensor that operates over a 55C to
+130C temperature range. The power supply operating
range is +2.4 V to +5.5 V. The transfer function of LM19 is
predominately linear, yet has a slight predictable parabolic
curvature. The accuracy of the LM19 when specified to a
parabolic transfer function is
±
2.5C at an ambient tempera-
ture of +30C. The temperature error increases linearly and
reaches a maximum of
±
3.8C at the temperature range
extremes. The temperature range is affected by the power
supply voltage. At a power supply voltage of 2.7 V to 5.5 V
the temperature range extremes are +130C and 55C.
Decreasing the power supply voltage to 2.4 V changes the
negative extreme to 30C, while the positive remains at
+130C.
The LM19’s quiescent current is less than 10 μA. Therefore,
self-heating is less than 0.02C in still air. Shutdown capa-
bility for the LM19 is intrinsic because its inherent low power
consumption allows it to be powered directly from the output
of many logic gates or does not necessitate shutdown at all.
Applications
n
Cellular Phones
n
Computers
n
Power Supply Modules
n
Battery Management
n
FAX Machines
n
Printers
n
HVAC
n
Disk Drives
n
Appliances
Features
n
Rated for full 55C to +130C range
n
Available in a TO-92 package
n
Predictable curvature error
n
Suitable for remote applications
Key Specifications
j
Accuracy at +30C
j
Accuracy at +130C & 55C
j
Power Supply Voltage Range
j
Current Drain
j
Nonlinearity
j
Output Impedance
j
Load Regulation
0 μA
<
I
L
<
+16 μA
±
2.5 C (max)
±
3.5 to
±
3.8 C (max)
+2.4V to +5.5V
10 μA (max)
±
0.4 % (typ)
160
(max)
2.5 mV (max)
Typical Application
Output Voltage vs Temperature
20004002
V
O
= (3.88x10
6
xT
2
) + (1.15x10
2
xT) + 1.8639
or
where:
T is temperature, and V
O
is the measured output voltage of the LM19.
20004024
FIGURE 1. Full-Range Celsius (Centigrade) Temperature Sensor (55C to +130C)
Operating from a Single Li-Ion Battery Cell
January 2003
L
2003 National Semiconductor Corporation
DS200040
www.national.com
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM19CIZ | 制造商:Texas Instruments 功能描述:IC ANALOG TEMP SENSOR TO-92-3 |
| LM19CIZ/LFT4 | 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 |
| LM19CIZ/NOPB | 功能描述:板上安裝溫度傳感器 2.4V,10uA,TEMP SENSOR 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 |
| LM19CIZ/NOPB | 制造商:Texas Instruments 功能描述:Temperature Sensor IC |
| LM1-AHR1-01-N1 | 制造商:MARKTECH 制造商全稱:Marktech Corporate 功能描述:Ultra Bright Red TOPLED LED |
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