OTC-238

厂商：
ETC2
封装：
描述：
OTC-238 - THERMOPILE INFRARED SENSOR - List of Unclassifed Manufacturers

数据手册：

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详情介绍
数据手册
价格&库存

OTC-238 数据手册

OTC-238 THERMOPILE INFRARED SENSOR Date : Oct. 10, 2000 ▓ Features The thermopile sensor consists of a series of 44 thermoelements, forming a sensitive area of 0.5*0.5 mm2. The sensor is hermetically sealed into a TO-18 metal housing, with optical filter. This standard filter allows measurements to be made in the spectral range above 5µm wavelength. The thermosensor exhibits an almost white noise, comparable to an ohmic resistance. It has a constant signal versus frequency up to its frequency limit, and is directly proportional to incident radiation. ▓ Applications * Ear thermometers; clinic thermometers * Infrared thermometers * Consumer applications: hair dryer, micro-wave oven, air conditioner, refrigerator * Continuous temperature control of manufacturing * Security system * Radiation monitor switch system * Absorbing measurement for gas analysis * Thermoelectric converter * Heat flux flowmeter ▓ Electrical Characteristics Parameter Thermopile Number of thermojunctions Chip size Active area Condition Min. Typ. Max. Unit ----Interference layer Siliconsubstrate 25 With 5-14µm filter --- 44 1920*1725 500*500 ------µm2 µm2 Thickness of substrate Resistance of thermopile Sensitivity Detecctivity Time Constant Noise voltage NEP Temperature range 600 60 40 4*107 ------- 625 70 55 7*107 30 34 0.8 --- 650 80 70 9*107 ------100 µm KΩ V/W cm*Hz1/2/W ms nV/Hz1/2 nW/Hz1/2 Operation -20 Measured at 1 Hz chopper frequency, within spectral range 5-14µm, using a blackbody radiator of 500K temperature. ▓ Thermopile voltage vs. blackbody temperature ▓ Frequency response ▓ Field of view ▓ Pin assignment & description 1 3 thermopile output pin (+) thermopile output pin (-) Thermopile 2(R) 3(V-) 1(V+) 4(GND) BACKSIDE VIEW SIDE VIEW ▓ Order information : OTC-238-A A : 1 2 : : standard filter (5-14µm) silicon filter with flat band transmission ▓ Transmission of filter Transmission of optical filter is measured by FTIR from 2µm ▓ Package The sensor is hermetically sealed into a TO-18 metal housing, with optical filter. This standard filter allows measurements to be made in the spectral range above 5µm wavelength. The dimensions of header and cap are shown below. 4.7000 3.0000 WINDOW IR FILTER 0.43 Unit: mm 2.0 CHIP CAP 3.6 HEADER ▓ Application circuit Circuit 1 : +5V C1 R1 Thermopile 1 3 C3 R5 C4 C5 + OP R6 Vout C6 R4 + R2 2 4 Reference Resistor R3 C2 Circuit 2 : Pre-Amplification Circuit Ambient Temperature Compensation Circuit +5V R10 + A2 Thermopile (+) R7 Adder C1 C3 R13 R11 2 4 + A3 R8 C2 R9 reference resistor Vout C4 +5V R1 + A1 R2 1+ 3Thermopile (-) R12

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OTC-238

1. 物料型号： - 型号为OTC-238。

2. 器件简介： - OTC-238是一个热电堆传感器，由44个热电元件组成，形成一个0.5mm x 0.5mm的敏感区域。传感器被密封在一个TO-18金属外壳中，带有光学滤波器。这个标准滤波器允许在5微米以上的波长范围内进行测量。

3. 引脚分配： - 有两个引脚：1为热电堆输出引脚（+），3为热电堆输出引脚（-）。

4. 参数特性： - 热电堆结数量：44个。 - 芯片尺寸：1920μm x 1725μm。 - 有效面积：500μm x 500μm。 - 基板厚度：625μm（典型值）。 - 热电堆电阻：在25°C时，典型值为70kΩ。 - 灵敏度：带5-14μm滤波器时，典型值为55V/W。 - 探测率：典型值为7 x 10^7 cmHz^(1/2)/W。 - 时间常数：30ms。 - 噪声电压：34nV/Hz^(1/2)。 - NEP（噪声等效功率）：0.8nW/Hz^(1/2)。 - 工作温度范围：-20°C至100°C。

5. 功能详解： - 该传感器可以用于耳温计、临床温度计、红外温度计、消费电子产品（如吹风机、微波炉、空调、冰箱）、连续温度控制、安全系统、辐射监测开关系统、气体分析吸收测量和热电转换器等。

6. 应用信息： - 传感器在1Hz切频下，使用500K温度的黑体辐射源，在5-14μm的光谱范围内测量。

7. 封装信息： - 传感器被密封在一个TO-18金属外壳中，带有标准滤波器，允许在5μm以上的波长范围内进行测量。封装的尺寸图已提供。

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