TP339

TP339 ROITHNER | Alldatasheet

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Thermopile Infrared Sensor TP339 Microelectronics Dept. 2000.05 1 / 7 ROITHNER LASERTECHNIK Tel: 43-1-5865243-0 Fax: 43-1-5865243-44 http://www.roithner-laser.com ▓ Features The thermopile sensor consists of a series of 116 thermoelements, forming a sensitive region size of 545 µm (diameter). The sensor is hermetically sealed into a TO-5 metal housing, with an optical filter. This standard filter allows measurements to be made in the spectral range above 5 µm wavelength. The t hermosensor 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. The thermopile sensors are featured with an additional temper ature reference resistor on the same chip. The standard version of temperature reference resistor is housing connected to ground. ▓ Applications * Ear thermometers; clinic thermometers * Infrared thermometers * Consumer applications: hair dryer, micr o-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

Thermopile Infrared Sensor TP339 Microelectronics Dept. 2000.05 2 / 7 ROITHNER LASERTECHNIK Tel: 43-1-5865243-0 Fax: 43-1-5865243-44 http://www.roithner-laser.com ▓ Electrical Characteristics Parameter Condition Min. Typ. Max. Unit Thermopile Number of thermojunctions --- 116 --- Chip size --- 1740*1740 --- µm2 Active region size Interference layer --- Diameter 545 --- µm Thickness of substrate Silicon- substrate 600 625 650 µm Resistance of thermopile 25 °C 50 65 80 KOhm Sensitivity With 5-14 µm filter 70 85 100 V/W Detecctivity 1.0*108 1.3*108 1.7*108 cm*Hz1/2/W Time constant --- 16 --- ms Noise voltage 28 32 36 nV/Hz1/2 NEP 0.28 0.36 0.48 nW/Hz1/2 Temperature range Operation -20 --- 100 °C Temperature reference resistor --- Resistance (1) 25 °C 29.1 30.0 30.9 KOhm Resistance (1) 25 °C 97 100 103 KOhm value (1) 0oC/25 °C 3773 3811 3849 K value (2) 0oC/25 °C 3950 3970 3990 K Measured at 1 Hz chopper frequency, within s pectral range 5-14 µm, using a blackbody radiator of 500 K temperature. Note : Thermistor should be operated under 1 mA.

Thermopile Infrared Sensor TP339 Microelectronics Dept. 2000.05 3 / 7 ROITHNER LASERTECHNIK Tel: 43-1-5865243-0 Fax: 43-1-5865243-44 http://www.roithner-laser.com ▓ Thermopile voltage vs. blackbody temperature ▓ Frequency response

Thermopile Infrared Sensor TP339 Microelectronics Dept. 2000.05 4 / 7 ROITHNER LASERTECHNIK Tel: 43-1-5865243-0 Fax: 43-1-5865243-44 http://www.roithner-laser.com ▓ Field of view ▓ Thermistor vs. temperature The resistance of the temperature referenc e resistor varies wit h temperature and the behaviour is illustrated in the following figure. 339

Thermopile Infrared Sensor TP339 Microelectronics Dept. 2000.05 5 / 7 ROITHNER LASERTECHNIK Tel: 43-1-5865243-0 Fax: 43-1-5865243-44 http://www.roithner-laser.com At temperature 25°C, R(T)=R25e  − 25T T describes the resistance vs. temperature, where R25 is the resistance at ambi ent temperature 25°C and T, T 25 are the ambient temperatures in unit of kelvin degrees. ▓ Pin assignment & description 2 thermistor pin 4 thermistor pin (GND) 1 thermopile output pin (+) 3 thermopile output pin (-) ▓ Order information : TP339 x X : U : Standard filter (5-14 µm). V : Silicon filter with flat band transmission. BACKSIDE VIEW 2(R) 3(V-) 1(V+) 4(GND) Thermopile Thermistor SIDE VIEW

Thermopile Infrared Sensor TP339 Microelectronics Dept. 2000.05 6 / 7 ROITHNER LASERTECHNIK Tel: 43-1-5865243-0 Fax: 43-1-5865243-44 http://www.roithner-laser.com ▓ Transmission of filter Transmission of optical filter is measured by FTIR from 2 µm ▓ Package The sensor is hermetically sealed into a TO -18 metal housing, with optical filter. This standard filter allows meas urements to be made in the spectral range above 5 µm wavelength. The dimensions of header and cap are shown below. 4.7000 3.0000 Window IR Filter Unit: mm 2.0 3.6 0.43 Chip Cap Header

Thermopile Infrared Sensor TP339 Microelectronics Dept. 2000.05 7 / 7 ROITHNER LASERTECHNIK Tel: 43-1-5865243-0 Fax: 43-1-5865243-44 http://www.roithner-laser.com ▓ Application circuit Circuit 1 : Circuit 2 : C1 R1 R5 R6 OP Vout +5V Reference Resistor Thermopile +5V Adder Vout Thermopile (-) Thermopile (+) R13 R10 R11 R12 +5V reference resistor Ambient Temperature Compensation CircuitPre-Amplification Circuit