SMTIR9902 Smartec

Infrared sensor type: SMTIR9901/9902 Version : 3.1 SMTIR9901/02 INFRARED SENSORS Typical applications contactless measurement of surface temperatures or Infrared radiation temperature measurement on moving objects. continuous temperature control of manufacturing. thermal alarm systems climate control medical instruments home appliances. Features High accuracy High sensitivity (110 V/W) Low resistance (50 KW) and therefore Very good signal-to-noise-ratio Good response time (40 ms) Low cost thin film technology Introduction The Smartec infrared sensor SMTIR9901 and SMTIR9902 are sophisticated full silicon infrared sensors. The sensors can be used in measuring the radiation temperature without any contact. For the different radiation temperature ranges various filters are available. The sensor type SMTIR9902 contains a temperature sensor for measuring the temperature of the sensor itself. The temperature range of the sensor-element is between - 40 to 100 C. The sensor is available in a standard TO-05 encapsulation and with a 5.5. mm. high pass filter. Easy and accurate measuring of the sensors temperature by means of a built-in temperature sensor (only for type SMTIR9902). Pin-out and housing (TO 5) Sensor surface Bottom view SMTIR9902 1 = det - 5.1 2 = det + 3 = NI1000 2 4 = NI1000/GND 3.9 8.15 1 3 SMTIR9901 1 = det - 2 = det + 4 3 = N.C. 45 All sizes in mm. 4 = GND 1.8 4.4 - 1 SMARTEC BV, Delpratsingel 26 WWW.SMARTEC.NL 4811 AP BREDA, The Netherlands Tel: +31 (0)76 5205353 Infrared sensor type: SMTIR9901/9902 Version : 3.1 Product description. Thermopiles are based on the Seebeck effect, which can be considered ever since a long time as standard for conventional thermocouples. The application of thin film technology allows the production of miniaturized and low cost sensor elements. A series connection of thermo junctions deposited on a silicon substrate forms the thermopile. The hot junctions are thermally isolated from the cold junctions on the substrate by etching an extremely thin membrane. A black absorbing layer on the hot junctions transforms the incoming radiation into heat. A voltage proportional to the radiation is generated by the thermoelectric effect. The used thermopiles are processed on 400 mm silicon substrates using BiSb and NiCr for the thermo junctions. For different radiation spectra various filters are available to find the optimal solution. Specifications Parameters typical units Number of thermojunctions 100 Active area 0.50 mm Die Size 2.2 *2.2 mm Resistance of thermopile 50 15 K Sensitivity 110 20 v/w ) Temp. Coeff.of sensitivity -0.52 0.08 %/K Specific Detectivity 2.1 * 10e8 cm.Hz/W ) Noise equivalent power 0.35 nW ) Noise voltage 37 nV/Hz Time Constant 40 10 ms (63%) Temperature range (sensor) -20 - 100 C Storage temperature -40 - 100 C Filter (high Pass) 5.5 m ) at 500 K,DC Reference Thermistor (SMTIR9902 only) Resistance 1.000 0.004 K ( 0C) - 2 SMARTEC BV, Delpratsingel 26 WWW.SMARTEC.NL 4811 AP BREDA, The Netherlands Tel: +31 (0)76 5205353