红外温度传感器OTP5.pdfVIP

Thermopile Sensor OTP-537F2 Revision Date: 2009/08/26 Introduction The OTP-537F2 is a thermopile sensor in classic TO-5 housing. The sensor is composed of 116 elements of thermocouple in series on a floating micro-membrane having an active diameter of 545 μm and with blacken surface to absorb the incident thermal infrared radiation, which induces a voltage response at output terminals. The sensor chip is fabricated by a unique front-surface bulk micromachining technology, which result in smaller size and faster to response ambient temperature change. The IR window is a bandpass filter having cut-on wavelength at 5 μm, and cut-down at 14μm. The sensor responses proportionally to the incident IR radiation and has a constant signal response up to its cut-off frequency, which is limited by the sensor thermal time constant of tens millisecond range. The OTP-537F2 thermopile sensor provides nearly Johnson-noise-limited performance, which can be calculated by its ohmic series resistance. A thermistor element, with a lead connected to ground, is also provided inside the TO package for ambient temperature reference. Features _ Non-contact temperature detection _ Voltage output, easy to take signal _ Zero power consumption _ Wide detection temperature range Applications _ Medical Application: Ear thermometers _ Home Facility: Microwave oven, Hair dryer, Safety system, Home secu rity Air conditioner _ Industry Application: Process monitor and controller, Infrared non-contact thermometers _ Automobile Application: Thermal sensing system Table of Contents 1 General Characteristics 1.1 Absolute Maximum Ratings 1.2 Handling Guidelines 2 Device Characteristics 2.1 Device Descriptions 2.2 Sensor Characteristics 2.3 Signal Output Characteristics 2.4 Frequency Response 2.5 Thermistor Characteristics 2.6 Optical Characteristi