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LM94023BITME

更新时间： 2024-11-24 05:42:23
品牌 Logo 应用领域
美国国家半导体 - NSC 传感器温度传感器
页数 文件大小 规格书
16页 380K
描述
1.5V, micro SMD, Dual-Gain Analog Temperature Sensor with Class AB Output

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中文翻译

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LM94023BITME 技术参数

是否Rohs认证： 不符合生命周期：Transferred
包装说明：BGA4,2X2,16Reach Compliance Code：compliant
风险等级：5.29最大精度（摄氏度）：2.7 Cel
主体宽度：0.815 mm主体高度：0.6 mm
主体长度或直径：0.815 mm安装特点：SURFACE MOUNT
端子数量：4最大工作电流：0.009 mA
最高工作温度：150 °C最低工作温度：-50 °C
输出电流标称：7000 µA封装主体材料：PLASTIC/EPOXY
封装等效代码：BGA4,2X2,16封装形状/形式：SQUARE
电源：1.5/5.5 V传感器/换能器类型：TEMPERATURE SENSOR,ANALOG,VOLTAGE OUTPUT
子类别：Other Sensors最大供电电压：5.5 V
最小供电电压：1.5 V表面贴装：YES
技术：CMOS端接类型：SOLDER

LM94023BITME 数据手册

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September 10, 2008  
LM94023  
1.5V, micro SMD, Dual-Gain Analog Temperature Sensor  
with Class AB Output  
General Description  
The LM94023 is a precision analog output CMOS integrated-  
Disk Drives  
Battery Management  
■
■
■
■
■
Automotive  
circuit temperature sensor that operates at a supply voltage  
as low as 1.5 Volts. Available in the very small four-bump mi-  
croSMD 0.8mm x 0.8mm) the LM94023 occupies very little  
board area. A class-AB output structure gives the LM94023  
strong output source and sink current capability for driving  
heavy loads, making it well suited to source the input of a  
sample-and-hold analog-to-digital converter with its transient  
load requirements, This generally means the LM94023 can  
be used without external components, like resistors and  
buffers, on the output. While operating over the wide temper-  
ature range of −50°C to +150°C, the LM94023 delivers an  
output voltage that is inversely porportional to measured tem-  
perature. The LM94023's low supply current makes it ideal for  
battery-powered systems as well as general temperature  
sensing applications.  
Games  
Appliances  
Features  
Low 1.5V operation  
■
■
■
■
Push-pull output with 50µA source current capability  
Two selectable gains  
Very accurate over wide temperature range of −50°C to  
+150°C  
Low quiescent current  
■
■
■
■
Output is short-circuit protected  
Extremely small microSMD package  
Footprint compatible with the industry-standard LM20  
temperature sensor  
A Gain Select (GS) pin sets the gain of the temperature-to-  
voltage output transfer function. Either of two slopes are  
selectable: −5.5 mV/°C (GS=0) or −8.2 mV/°C (GS=1). In the  
lowest gain configuration, the LM94023 can operate with a  
1.5V supply while measuring temperature over the full −50°C  
to +150°C operating range. Tying GS high causes the transfer  
function to have the largest gain for maximum temperature  
sensitivity. The gain-select inputs can be tied directly to VDD  
or Ground without any pull-up or pull-down resistors, reducing  
component count and board area. These inputs can also be  
driven by logic signals allowing the system to optimize the  
gain during operation or system diagnostics.  
Key Specifications  
1.5V to 5.5V  
■ꢀSupply Voltage  
■ Supply Current  
■ Output Drive  
■ꢀTemperature  
Accuracy  
5.4 μA (typ)  
±50 μA  
20°C to 40°C  
-50°C to 70°C  
-50°C to 90°C  
-50°C to 150°C  
±1.5°C  
±1.8°C  
±2.1°C  
±2.7°C  
Applications  
■ꢀOperating  
Temperature  
Cell phones  
■
■
−50°C to 150°C  
Wireless Transceivers  
Connection Diagram  
Typical Transfer Characteristic  
micro SMD  
Output Voltage vs Temperature  
30075001  
Top View  
See NS Package Number TMD04AAA  
30075024  
© 2008 National Semiconductor Corporation  
300750  
www.national.com  
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LM94023BITME 替代型号

型号 品牌 替代类型 描述 数据表
LM94023BITMX/NOPB TI

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