LM20BIM7传感器变送器的温度传感器-模拟数字输出规格书PDF中文资料

LM20BIM7属于传感器变送器的温度传感器-模拟数字输出。由德州仪器制造生产的LM20BIM7温度传感器 - 模拟和数字输出模拟和数字输出温度传感器可用于测量环境热能量。特征包括传感器类型、本地感测温度、远程感测温度、输出类型、电源电压和分辨率。传感器类型为模拟本地/远程/红外、模拟数字、本地/远程、数字本地/远程/红外或内部，感应温度范围为 -55°C 至 200°C。

1 Features

1• Rated for −55°C to 130°C Range

• Available in SC70 and DSBGA Package

• Predictable Curvature Error

• Suitable for Remote Applications

• Accuracy at 30°C ±1.5 to ±4°C (Maximum)

• Accuracy at 130°C and −55°C ±2.5 to ±5°C

(Maximum)

• Power Supply Voltage Range 2.4 V to 5.5 V

• Current Drain 10 μA (Maximum)

• Nonlinearity ±0.4% (Typical)

• Output Impedance 160 Ω (Maximum)

• Load Regulation

0 μA < I L< 16 μA −2.5 mV (Maximum)

2 Applications

• Cellular Phones

• Computers

• Power Supply Modules

• Battery Management

• FAX Machines

• Printers

• HVAC

• Disk Drives

• Appliances

3 Description

The LM20 is a precision analog output CMOS

integrated-circuit temperature sensor that operates over −55°C to 130°C. The power supply operating

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 specified to a parabolic transfer function is ±1.5°C at

an ambient temperature of 30°C. The temperature

error increases linearly 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

−55°C. Decreasing the power supply voltage to 2.4 V

changes the negative extreme to −30°C, while the

positive extreme remains at 130°C.

The LM20 quiescent current is less than 10 μA.

Therefore, self-heating is less than 0.02°C in still air.

Shutdown capability 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.