LM20SIBPX

更新时间： 2024-11-11 22:47:07

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
9页	221K
描述
LM20 2.4V, 10レA, SC70, micro SMD Temperature Sensor

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LM20SIBPX 数据手册

October 1999

LM20

2.4V, 10µA, SC70, micro SMD Temperature Sensor

n Battery Management

n FAX Machines

n Printers

n HVAC

n Disk Drives

n Appliances

General Description

The LM20 is

precision analog output CMOS

integrated-circuit temperature sensor that operates over a

−55˚C to +130˚C temperature range. The power supply op-

erating range is +2.4 V to +5.5 V. The transfer function of

LM20 is predominately linear, yet has a slight predictable

parabolic curvature. The accuracy of the LM20 when speci-

fied to a parabolic transfer function is 1.5˚C at an ambient

Features

temperature of +30˚C. The temperature error increases lin-

early and reaches a maximum of 2.5˚C 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 +130˚C and

n Rated for full −55˚C to +130˚C range

n Available in an SC70 and a micro SMD package

n Predictable curvature error

n Suitable for remote applications

−55˚C. Decreasing the power supply voltage to 2.4

changes the negative extreme to −30˚C, while the positive

remains at +130˚C.

Key Specifications

1.5 to 4 ˚C (max)

n Accuracy at +30˚C

n Accuracy at +130˚C & −55˚C

n Power Supply Voltage Range

n Current Drain

The LM20’s quiescent current is less than 10 µA. Therefore,

self-heating is less than 0.02˚C in still air. Shutdown capabil-

ity for the LM20 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.

2.5 to 5 ˚C (max)

+2.4V to +5.5V

10 µA (max)

n Nonlinearity

0.4 % (typ)

n Output Impedance

n Load Regulation

160 Ω (max)

Applications

n Cellular Phones

n Computers

0 µA I_L+16 µA

−2.5 mV (max)

n Power Supply Modules

Typical Application

Output Voltage vs Temperature

DS100908-2

V_O(−3.88x10⁻⁶xT²) + (−1.15x10⁻²xT) + 1.8639

where:

T is temperature, and V is the measured output voltage of the LM20.

DS100908-24

Full-Range Celsius (Centigrade) Temperature Sensor (−55˚C to +130˚C)

Operating from a Single Li-Ion Battery Cell

DS100908

www.national.com

12 3 4 5 6 7...9

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与LM20SIBPX相关器件

型号	品牌	获取价格	描述	数据表
LM20SIBPX/NOPB	TI	获取价格	ANALOG TEMP SENSOR-VOLTAGE, 10uA, 3.50Cel, SQUARE
LM20SIBPXEP	NSC	获取价格	Enhanced Plastic 2.4V, 10uA, SC70, micro SMD Temperature Sensor
LM20SITL	NSC	获取价格	2.4V, 10レA, SC70, micro SMD Temperature Senso
LM20SITL	TI	获取价格	LM20 2.4V, 10Î¼A, SC70, DSBGA Temperature Sen
LM20SITL/NOPB	TI	获取价格	±1.5°C 模拟输出温度传感器 \| YZR \| 4 \| -40 to 125
LM20SITLEP	NSC	获取价格	Enhanced Plastic 2.4V, 10uA, SC70, micro SMD Temperature Sensor
LM20SITLX	NSC	获取价格	2.4V, 10レA, SC70, micro SMD Temperature Senso
LM20SITLX	TI	获取价格	LM20 2.4V, 10Î¼A, SC70, DSBGA Temperature Sen
LM20SITLX/NOPB	TI	获取价格	±1.5°C 模拟输出温度传感器 \| YZR \| 4 \| -40 to 125
LM20SITLXEP	NSC	获取价格	Enhanced Plastic 2.4V, 10uA, SC70, micro SMD Temperature Sensor

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